Summary Information
Title: Darlington Family Papers
Collection Number: DAR.1925.01
Creator: Darlington family

Collection Dates: 1753-1921
Extent: 18.0 linear feet (28 boxes, 61 volumes)

Language: English

The Darlington family lived in Pittsburgh, Pennsylvania, from the late eighteenth through the early nineteenth centuries. William M. Darlington and his wife, Mary Carson O'Hara Darlington, collected thousands of books and manuscripts documenting the frontier history of western Pennsylvania. The collection includes financial, personal and legal papers, and documentation of collecting activities and ephemera related to William M. Darlington and his family. Formats of materials include ledger books, research notes, manuscripts, personal diaries, photographic prints and negatives, letters, and artwork. Digital reproductions of this collection are available online.

ULS Archives Service Center
University of Pittsburgh Library System
7500 Thomas Boulevard
Pittsburgh, PA, 15260
Date Published:

September 2008

Finding aid prepared by Kate Colligan, Angela Manella, Allison Houser, Kristien Boyle, and Nicole Mader.

The Darlingtons of Pittsburgh, Pennsylvania trace their roots in America to Abraham Darlington of Cheshire County, England, who joined his aunt and uncle in Chester County, Pennsylvania, at the turn of the eighteenth century. Abraham’s great-grandson, Benjamin Darlington (1790-1856), left Chester County and settled in Pittsburgh with his wife, Agnes McCullough. The Darlingtons of Pittsburgh are related to the Schenley and O’Hara families through the marriage of Benjamin and Agnes’s son, William McCullough Darlington (1815-1889), to Mary Carson O’Hara.

William M. Darlington was a successful lawyer and one of the foremost experts in the colonial history of western Pennsylvania and the Ohio Valley. Mary shared her husband’s passion for history, and was very proud of her family’s ancestry, which she traced back to Irish nobility through her grandfather, James O’Hara. Through her father, Mary inherited Guyasuta: James O’Hara’s estate near present-day Sharpsburg, Pennsylvania.

William and Mary raised three children at Guyasuta, O’Hara, Mary, and Edith. A fourth child, Hillborn, died in childhood. For more detailed biographies of each family member, see the scope and content note provided for each individual’s papers. William was the primary collector of his family’s extensive library of books and manuscripts. After William’s death in 1889, his widow and children maintained and added to his collection. In 1918 and 1925, William’s daughters Edith and Mary donated the family library and manuscript collection to the University of Pittsburgh. These materials include original letters by George Washington, Colonel Henry Bouquet, General Anthony Wayne, Hugh Henry Brackenridge, General Cornwallis, General James Wilkinson, Alexander Hamilton, Andrew Jackson and Daniel Webster. William M. Darlington also obtained and preserved John James Audubon’s complete set of Birds of America.

Collection Scope and Content Notes

This collection contains the nineteenth and early twentieth century personal, legal and financial papers of William M. Darlington and his family, including: his wife, Mary Carson O'Hara Darlington; his children, O'Hara Darlington, Mary Carson Darlington and Edith Dennison Darlington Ammon; his father, Benjamin Darlington; and his wife's grandparents, James and Mary Carson O'Hara. Documents include personal letters, business correspondence, financial and travel documents, art on paper, photographs, scrapbooks of news clippings and personal ephemera. The collection highlights William's book collecting, including correspondence with book dealers and individuals interested in his library, book catalogs and orders, receipts for purchases, notes and essays written by William, and topical inventories of the family library when it resided at Guyasuta.


  • Series I. James O'Hara Papers, 1777-1880
  • Series II. Benjamin Darlington Papers, 1815-1852
  • Series III. William M. Darlington Papers, 1837-1889
  • Series IV. Mary Carson O'Hara Darlington Papers, 1753-1908
  • Series V. O'Hara Darlington Papers, 1874-1916
  • Series VI. Mary Carson Darlington Papers, 1833-1913
  • Series VII. Edith Dennison Darlington Ammon Papers, 1881-1882, 1908-1919
  • Series VIII. Family Papers, 1826-1914
  • Series IX. Bound News Clipping Books, 1898-1917
  • Series X. Scrapbooks, ca. 1850-1915
  • Series XI. Photographs, 1885-1888
  • Series XII. Mary Carson Darlington Artwork, 1867-1925
  • Series XIII. Oversize Materials, 1785-1899

Subject Terms

  • Book collecting -- Pennsylvania -- Pittsburgh
  • Collectors and collecting -- Pennsylvania -- Pittsburgh
  • Frontier and pioneer life -- Pennsylvania -- Pittsburgh
  • Glass manufacture -- Pennsylvania -- Pittsburgh
  • Indians of North America -- Pennsylvania -- Pittsburgh
  • Photography -- Pennsylvania -- Pittsburgh
  • Prints, American -- 19th century -- Collectors and collecting
  • Shipping -- Pennsylvania -- Pittsburgh
  • Watercolor painting, American -- Pennsylvania-- Pittsburgh
  • Wills -- Pennsylvania -- Pittsburgh.

Corporate Names
  • Allegheny Engine and Hose Company.
  • Allegheny Valley Railroad Company.
  • Bank of the United States (1816-1836). Pittsburgh Branch.
  • Daughters of the American Revolution.
  • Historical Society of Pennsylvania.
  • Pennsylvania Railroad.
  • Pittsburgh Amateur Photographers' Society.
  • Pittsburgh Gas Works.
  • Pittsburgh Glass Works.
  • Sharpsburg Bridge Company.
  • Washington & Jefferson College (Washington, Pa.).

Personal Names
  • Ammon, Edith Dennison Darlington, 1862-1919
  • Bouquet, Henry, 1719-1765
  • Brackenridge, H. M. (Henry Marie), 1786-1871
  • Darlington, Benjamin, 1790-1856
  • Darlington, Mary C. (Mary Carson), 1824-1915
  • Darlington, Mary Carson, 1852-1925
  • Darlington, O'Hara, 1849-1916
  • Darlington, William M. (William McCullough), 1815-1889
  • Hemphill, Mittie
  • McCullough, Jane, 1766-1821
  • O'Hara, James, 1752-1819
  • O'Hara, Mary Carson

Family Names
  • Darlington family
  • O'Hara family

  • Allegheny County (Pa.) -- History
  • Egypt -- Description and travel
  • Europe -- Description and travel
  • Fort Pitt (Pa.) -- History
  • Ireland -- History
  • O'Hara (Pa. : Township) -- History
  • Pittsburgh (Pa.) -- History
  • Pittsburgh Region (Pa.) -- History
  • Sharpsburg (Pa.) -- History
  • United States -- History -- French and Indian War, 1755-1763

  • Entrepreneurs
  • Lawyers
  • Military personnel
  • Public officers

  • Clippings (Information artifacts)
  • Color prints (Prints)
  • Correspondence
  • Diaries
  • Diplomas
  • Envelopes
  • Essays
  • Land surveys
  • Ledgers (Account books)
  • Manuscripts (Document genre)
  • Maps
  • Obituaries
  • Photographs
  • Receipts (Financial records)
  • Sketches
  • Souvenirs
  • Watercolors (Paintings)

  • Business and Industry
  • Personal papers
  • Women

Access and Use
Access Restrictions:

No restrictions.

Acquisition Information:

Part of the original donation of William M. Darlington’s family library to the University of Pittsburgh in 1918 and 1925 by his daughters, Edith Darlington Ammon and Mary Carson Darlington.

Alternate Format:

Digital reproductions of this collection are available online. Digitized images of the Darlington Family photographs are available at

Custodial History:

The Darlington Family Papers consist of three separate accessions. The first group of materials was donated to the University of Pittsburgh by Mary Carson Darlington and Edith Darlington Ammon in 1918. In 1925, Mary Carson Darlington bequeathed the remainder of the family library and a number of ephemeral items to the University. The third accession consisted of a collection of correspondence between Edith Darlington and Mittie Hemphill that was presented to the University of Pittsburgh in November of 1977 by Richard Johnson of the New England Historic Genealogical Society. The Darlington-Hemphill letters had been gifted to the New England Historic Genealogical Society earlier in 1977 by Mrs. Henry Mayo, a granddaughter of Mittie Hemphill.

This collection was located in the Darlington Memorial Library in the University’s Cathedral of Learning until 2007 when it was moved to the ULS Archives Service Center for processing, storage, preservation and service. However, it remains in the custodianship of the ULS Special Collections Department.

Preferred Citation:

Darlington Family Papers, 1753-1921, DAR.1925.01, Darlington Collection, Special Collections Department, University of Pittsburgh

Processing Information:

This collection was processed by Kate Colligan, Allison Houser and Kristien Boyle in October 2006, and by Angela Manella in November 2007.


No copyright restrictions.

Separated Material:
Large artwork, framed photographs, bound volumes and the majority of photographs are stored separately from manuscript materials. Throughout the finding aid, separated materials are indicated as “oversize” if they are stored separately due to size, and “volume” if they are bound items.


  • Davison, Elizabeth M. and Ellen B. McKee, eds. Annals of Old Wilkinsburg and Vicinity: The Village, 1788-1888, Wilkinsburg, Pa: Group for Historical Research, 1940.
  • Bomberger, C. M. Brush Creek Tales. Jeannette, Pa: Jeannette Publishing, 1950.
  • Boucher, John Newton. A Century and a Half of Pittsburg and Her People New York: The Lewis Publishing Company, 1908.
  • Chalfant, Ella. A Goodly Heritage : Earliest Wills on an American Frontier. Pittsburgh, Pa: University of Pittsburgh Press, 1955.
  • Cope, Gilbert. The Genealogy of the Darlington Family. West Chester,Pa: Printed by the committee for the family, 1900.
  • Course of Study in Geographic, Biographic and Historic Pittsburgh. Pittsburgh, Pa: The Board of Public Education, 1921.
  • Fleming, George. History of Pittsburgh and Environs, from Prehistoric Days to the Beginning of the American RevolutionNew York: The American Historical Society, Inc., 1922.
  • Pittsburgh Freemasons, Lodge no. 45. History of Lodge no. 45, 1785-1910. Pittsburgh, Pa.,: Press of Republic Bank Note Company, 1912.
  • Harper, Frank C. Pittsburgh of Today, Its Resources and People. New York: The American Historical Society, Inc., 1931-1932.
  • Herbert, Anne Hemphill. Personal Memories of the Darlington Family at Guyasuta. Pittsburgh, Pa: University of Pittsburgh Press, 1949.
  • Kussart, Sarepta Cooper. The Allegheny River. Pittsburgh, Pa: Burgum Printing Company, 1938.
  • Starrett, Agnes Lynch. Through One Hundred and Fifty Years: The University of Pittsburgh. Pittsburgh, Pa: University of Pittsburgh Press, 1937.
  • Wilson, Erasmus, and Weston Arthur Goodspeed Standard History of Pittsburgh, Pennsylvania.. Chicago: H.R. Cornell & Co., 1898.
  • Shine, Bernice. "Oakland: Mary Croghan Schenley: Schenley Park Donated by a Girl Whose Romance Shocked a Queen." Pittsburgh Sun-Telegraph, 15 September 1941.
  • Schock, Hiram. The History of the Masonic Fund Society for the County of Allegheny. Pittsburgh, Pa: 1923.
  • Rubin, Julius. Canal or Railroad? Imitation and Innovation in the Response to the Erie Canal in Philadelphia, Baltimore, and Boston.Philadelphia: American Philosophical Society, 1961.
  • Patch, Margery Hulburt. "The Darlington Family Collection." The Pittsburgh Record v1.

Collection Inventory

Series I. James O’Hara Papers, 1777-1880

Scope and Content Notes:

James O’Hara (1753-1819) left his home in County Mayo, Ireland, in 1773 to settle in Philadelphia. In 1774, he was appointed a government Indian agent, and traveled to western Pennsylvania where he traded with Indians at Fort Pitt on behalf of an eastern company, and purchased extensive lands from the federal government. In 1788, James became the second president of the Bank of Pennsylvania, and two years later he wed Mary Carson (1760-1834) of Philadelphia, and brought her to Pittsburgh. George Washington appointed him Quartermaster General of the United States Army in 1792. During his military career, James served in western Pennsylvania to quell the Whiskey Rebellion and in General Anthony Wayne’s expedition against the Western Confederation. Anne Hemphill Herbert notes that James is credited with "saving the army with his efficient business methods and remarkable understanding of the Indian character and their various dialects."

In 1793, James purchased land at the forks of the Ohio from the United States government, and four years later he and his partner, Major Isaac Craig, built the first glass works in America on the southern banks of the Monongahela River. James became Pittsburgh’s first burgess and was a founder of the First Presbyterian Church. Materials in this series provide information on early frontier life in Pennsylvania through various personal and professional letters as well as official government reports. Also included are copies of James and Mary O’Hara’s wills, which are critical in understanding the inheritance of significant property holdings that are now important to Pittsburgh’s history, including Schenley Park and the Fort Pitt Block House. Accompanying these materials is H.M. Brackenridge’s critique of James O’Hara’s will. An obituary of James O’Hara and newspaper articles describe his role in the early development of Pittsburgh and his dealings with the Indian tribes. James O’Hara’s papers have been divided into subseries that separate personal and business papers from materials describing his legacy and estate.

Subseries 1. Personal and Business Papers

Scope and Content Notes:

Various personal letters written by General James O'Hara to his wife and contemporaries describe conditions at Fort Pitt and along the Miami River in the 1790s, including a comment that surrounding Indian tribes were "intent on annoying our Frontiers." A number of items relate to James O'Hara's land, including a 1785 land office record that documents property he owned near Campbell's Run, and a lease agreement for land in Robinson Township. A letter, court decision, and article of ejectment relate to a land dispute between the estates of Arthur St. Clair and James O'Hara. Transcriptions of James' diary include his opinions on immigration, and mention the glassworks that he built.

Box 1
Folder 1 James O'Hara to Devereaux Smith, April 8, 1777
Folder 2 James O'Hara to Mary Carson O'Hara, October 3, 1794
Folder 3 Diary (typed transcript), 1795-1804
Folder 4 Official Land Office record, October 17, 1785
Folder 5 Report on transportation, southwest branch of the Miami River, October 23, 1793
Folder 6 Receipt of Business Exchange, August 26, 1799
Folder 7 Lease agreement between James O'Hara and J. Benny, March 1805
Folder 8 Letter written by James O'Hara to Arthur St Clair, July 27, 1809
Folder 9 Judgment for James O'Hara, December 29, 1809
Folder 10 Survey of Land Ownership, September 20, 1830
Folder 11 Article on Ejectment from court, February 1846
Folder 12 Law suit, January, 1880

Subseries 2. Genealogy, Estate and Legacy

Scope and Content Notes:

Included are the wills of both James and Mary O'Hara, along with an essay written by Henry Marie Brackenridge critiquing the will of James O'Hara. Materials related to his estate include an article describing Mary E. Schenley's law suit against James O'Hara's executors and an 1881 newspaper clipping entitled "Sheriff"s Sales". James O'Hara's obituary and a number of brief, typed excerpts from the Pittsburgh Gazette, Pittsburgh Mercury, and the Pennsylvania Archives describe General James O'Hara and some of his accomplishments in the military. In an additional published item, John Heckewelder discusses General O'Hara's influence on the interaction between Indians and settlers. The collection also contains a typed O'Hara family genealogy, a family biography, and two portraits of James O'Hara.

Folder 13 "Sheriff's Sales" clipping, March 7, 1881
Folder 14 Typed excerpts from newspapers, 1786-1842
Folder 15 James O'Hara's Will, September 15, 1819
Folder 16 Obituary of James O'Hara, December 21, 1819
Folder 17 Extract of Mary Carson O'Hara's Will, October 10, 1825
Folder 18 Mary Carson O'Hara's Will, November 15, 1832
Folder 19 Essay by Henry Marie Brackenridge, August 15, 1846
Folder 20 Printed anecdote, "Indian Fidelity", mentioning James O'Hara, undated
Folder 21 List of O'Hara Family members, undated
Folder 22 O'Hara family Biography and Portrait of James O'Hara, undated

Series II. Benjamin Darlington Papers, 1815-1852

Scope and Content Notes:

Benjamin Darlington (1790-1856), one of Pittsburgh’s elite businessmen and benefactors of the 1800’s, was the husband of Agnes McCullough and father of William M. Darlington. Benjamin Darlington owned a thriving store and hotel, and eventually his wealth, prestige and family connections presented him with the opportunity to assist in leading the Allegheny Valley Railroad Company. Benjamin Darlington was the fourth generation of Darlingtons in the United States. Benjamin Darlington began as a carpenter’s apprentice. After working in a store on Market Street, he gained enough capital to buy a hardware store with his brother, Samuel Darlington, and later owned one of Pittsburgh’s only hotels. In 1833, he was elected president of the Allegheny Engine and Hose Company, and by 1837 he was one of the first officers on the Board of Trustees for Pittsburgh’s Gas Works. Benjamin Darlington served as commissioner for the Allegheny Valley Railroad Company and contributed a major donation for the building of the Pittsburgh Theater.

The series concerning Benjamin Darlington includes documents explaining his endeavors as a successful entrepreneur while Pittsburgh was growing into a major city. The receipt books contain handwritten records of various transactions made by Benjamin Darlington, explaining his relevance to the real estate business in Pittsburgh. Listed are property holdings and rent collections including one by Alexander Brackenridge, who was at the time president of the United States Bank in Pittsburgh. Accompanying this are other transactions made by Benjamin Darlington as the executor to the estate of Jane McCullough (1766-1821), his mother-in-law. In addition to the receipt books, there are various letters to and from Benjamin Darlington, including correspondence from his brother, Samuel Darlington. A number of names appear within the two receipt books, aside from those mentioned above; a brief list follows: John Wright, James Appleton, Thomas Dickson, Jane McCullough, Anderson Evans, Jacob Negley, Irvin Boyle, Isabella Miller, Mary McCullough, Sarah Simpson, Will Porter, William Whitton, John Stewart, James Wilson, James Caoper, Jane Smith, Margaret White, and others. For more documents related to this series, see Box 25, with oversize materials.

Folder 23 Samuel Darlington to Benjamin Darlington, May 23, 1815
Folder 24 Henry Baldwin to Benjamin Darlington, May 20, 1820
Folder 25 Jane McCullough's Will, November 25, 1820
Folder 26 Agreement between Benjamin and Samuel Darlington, undated
Folder 27 Land Survey, October 19, 1830
Folder 28 Financial Papers of Benjamin Darlington, 1833-1837
Folder 29 Receipt, December 5, 1837
Folder 30 Acknowledgement of repayment, June 1843
Volume 1 Receipt Book, 1821-1852
Volume 2 Receipt Book, 1833-1842

Series III. William M. Darlington Papers, 1837-1889

Scope and Content Notes:

William M. Darlington (1815-1889), was born to Benjamin Darlington and Agnes McCullough in Pittsburgh. William was educated in private schools as a child and young adult, and then went on to study at Jefferson College, now known as Washington & Jefferson College, in Pennsylvania. He began his law career under the tutelage of Richard Biddle.

William was a devout Presbyterian, a well-respected attorney, member of the Pennsylvania Bar Association for fifty years, and Vice President of the Pennsylvania Historical Society. During the last eight years of his life, he was also a trustee of his alma mater, Jefferson College, and the Western University of Pennsylvania, now the University of Pittsburgh. William amassed an extensive collection of books, manuscripts and maps related to western Pennsylvania’s colonial and revolutionary history. This library was supplemented by his wife and three eldest children.

This series is organized into three topical subseries. Subseries 1 contains materials related to William’s collecting activities, including documentation of book purchases, correspondence with booksellers and fellow collectors, historical research notes, receipts, and membership certificates to historical societies. Subseries 2 contains William’s personal papers, including correspondence and diaries. Subseries 3 encompasses financial and estate papers.

Subseries 1. Collection Activities and Research

Scope and Content Notes:

Materials in this subseries document William's collecting and lending activities, the library at Guyasuta, and his personal research and writing. William collected books and manuscripts from vendors such as the Hakluyt Society, as well as individual booksellers. Correspondence with Richard S. Edes, James Veech and Joseph Albree are examples of William's contacts in the field of rare books. Also, seventeen receipts document the purchase of books from the law offices of Baldwin & Ford, J. Munsel, and Burns & Son, among others. A bound volume of book orders, demonstrates William's meticulous documentation of the books he ordered between November 30, 1847 and January 14, 1867, including the Audubon volumes. William's correspondence with A. Eaton, John Newton, J.M. Read, J. R. Lambdin, and W.C. Reichel all highlight his role as a consultant for other researchers, to whom he sometimes lent or sold books.

The great strength of this subseries is the documentation of volumes in the library at Guyasuta. The Classification of Books consists of three successive versions of a list of books in the library at Guyasuta. Mary used these three volumes to alphabetically catalog the books in the Darlington family library according to topic, including history, travels, horticulture and natural history, and poetry, drama and tales; sections also list magazines, newspapers, and maps. In addition to these larger volumes, this subseries includes a partial catalog and a partial inventory of books at Guyasuta; these smaller lists most likely repeat titles already listed in the Classification of Books. Additionally, design diagrams for library bookcases shed light on the original physical arrangement of the Guyasuta library.

William was deeply interested in historical research, as was his professional mentor, Richard Biddle, and this subseries contains bound volumes of William's notes and writings about various topics. His Commonplace Book and Research Notes discuss a variety of topics, including: the Ohio Company; Forts Pitt, Duquesne, Shippen and Kittanning; Guyasuta; the Allegheny River and the city of Pittsburgh; Old Westmoreland and Indiana Counties; the Montour family; the Shawnee (Shananese) and Seneca Indians; George Croghan and Henry Alexander; and shipbuilding and theater. The Historical Biographical Notes include William's thoughts on such diverse topics as the Californian coal mountains, British nobility, the Darlington family crest, American Indian rituals, and the papers of British officer Henry Bouquet (1719-1765). This subseries contains transcriptions of the Bouquet Papers, which William commissioned from the British Museum. The transcribed letters document communication between Colonel Bouquet and other British officers during the French and Indian War from locations throughout Pennsylvania, his military campaign to drive the French out of Fort Duquesne, and the battle with Indians at Bushy Run. William was profoundly interested in the Ohio Company, and collected many papers relating to this eighteenth century land-development and trading consortium, including copies of the journals of Christopher Gist, who was hired by the company to negotiate terms with the Indians. William published Christopher Gist's Journals posthumously in 1893, possibly using transcriptions in this subseries. The drafts of his publication are located in the collection number dar192514.

William's Western Pennsylvania Historical Notes concerns legal events in Allegheny County, and include brief biographical notes on newly appointed judges. William also recorded information on proceedings and treaties brokered with the American Indians by early frontiersmen. Another section of this volume includes financial records concerning rent paid for several properties leased by the Darlington family. There are many loose pages within the journal and several pages are written entirely in French. For more information on this collection, please refer to Box 25, with oversized materials

Folder 31 William M. Darlington to A. Eaton, January, 1838
Folder 32 Historical Society of Pennsylvania to William M. Darlington, July 1, 1855
Folder 33 Certificate from State Historical Society of Wisconsin, September 12, 1872
Folder 34 J. M. Read, Jr., to William M. Darlington, September 5, 1866
Folder 35 Charles Whittlesey to William M. Darlington, 1870-1872
Folder 36 Statement by John Pennington, April 25, 1866
Folder 37 Envelopes to William M. Darlington, ca. 1870-1885
Folder 38 Isaac Samuel to William M. Darlington, February 8, 1871
Folder 39 Letter to William M. Darlington from J. R. Lambdin, March 10, 1871
Folder 40 W.C. Reichel to William M. Darlington, July 8, 1871
Folder 41 William White to William M. Darlington, 1872
Folder 42 Richard S. Edes to William M. Darlington, March 12, 1873
Folder 43 Joseph Albree to William M. Darlington, March 31 1875
Folder 44 J. C. Hale to William M. Darlington, March 6, 1876
Folder 45 Letter to William M. Darlington from John M. Newton, November 26, 1876
Folder 46 James Veech to William M. Darlington, 1877
Folder 47 Letter from William M. Darlington to W. B. Hoff, May 1, 1884
Folder 48 J. L. Keyes to William M. Darlington, February 8, 1877
Folder 49 Boyd Grumrine to William M. Darlington, May 30, 1881
Folder 50 Sir to William M. Darlington, May 3, 1883
Folder 51 Gilbert Cope to William M. Darlington, June 4, 1884
Folder 52 American History Magazine subscriptions and letter from Joseph Sabin, June 3, 1881
Folder 53 Robert Clarke to William M. Darlington, December 2, 1884
Folder 54 Receipts for Books purchased by William M. Darlington, August 21- December 11, 1885.
Folder 55 George P. Smith to William M. Darlington, April 15, 1886
Folder 56 George P. Smith to William M. Darlington, March 12, 1868
Folder 57 List of Hakluyt Society Publications, undated
Folder 58 Topographical Description, undated

Box 2
Folder 1 List of Books in William M. Darlington's Library at Guyasuta, undated
Folder 2 Catalog, undated
Folder 3 Inventory, Hall Bookcase, undated
Folder 4-5 History Notes, undated
Folder 6-13 Bouquet Papers Transcriptions, 1758-1763
Folder 14-21 18C primary source transcriptions, undated
Folder 22 Transcripts of Ettwein's diary, undated
Folder 23-36 Research notes, undated
Folder 37 Darlington Research Notes, undated

Box 3
Folder 1-10 Research notes, undated
Folder 11-22 Manuscript drafts, undated
Folder 23 Printed ephemera, undated
Volume 3 Classification of books in Darlington library at Guyasuta, undated
Volume 4 Classification of books in Darlington library at Guyasuta, undated
Volume 5 Classification of books in Darlington library at Guyasuta, undated
Volume 6 Historical biographical notes, undated
Volume 7 Book Orders, November 30, 1847- January 4, 1867
Volume 8 Research Notes, undated
Volume 9 Financial Records, 1858-1859
Volume 49 Memoranda, ca. 1870s-1880s
Volume 50 The Improved Commonplace Book, ca. 1870s-1880s

Subseries 2. Personal Papers

Scope and Content Notes:

This subseries contains personal letters from George P. Smith and Sergeant Winthropy, and a copy of a letter William wrote from Westchester, Pennsylvania, to an unknown correspondent who had requested information on cuttings and seedlings from Guyasuta. In 1862, William wrote to his brother, John, expressing happiness that John joined an Indiana regiment instead of a Pennsylvania regiment, as Indiana regiments were less likely to be sent to war. Also present are William's membership certificates from the Academy of Natural Sciences and the State Historical Society of Wisconsin, as well as a portrait of him at the time. For more information on this topic, please refer to Box 25, which contains oversized materials. The Record-Book included in this subseries appears to contain handwritten copies of Darlington's outgoing correspondence from 1838; it also includes accounts he documented from 1840 to 1844.

Folder 24 Sergeant Winthropy to William M. Darlington, August 24, 1855
Folder 25 William M. Darlington to Sir, October 22, 1855
Folder 26 William M. Darlington to John Darlington, February 7, 1862
Folder 27 James Brown to William M. Darlington, July 29, 1885
Folder 28 George P. Smith to William M. Darlington, November 20, 1888
Folder 29 Norma Derry to William M. Darlington, undated
Folder 30 Unknown to William McCullough Darlington, undated
Folder 31 George White to William M. Darlington, September 9, 1870
Volume 52 William M. Darlington Record-Book, 1838, 1840-1841, 1844

Subseries 3. Financial and Estate Papers

Scope and Content Notes:

This subseries contains documents relating to William M. Darlington's properties, investments, taxes and profession. Property records include a title to land in Allegheny County, an auction catalog of household goods inscribed to William, and a small notebook dated 1879 that lists bonds and mortgage payments. Additionally, two bound volumes, an account book and a book of financial records, document rent and mortgage payments, including payments from such institutions as the trustees of Jefferson College, and Snyder & Company. William owned stock in the Pittsburgh Manufacturing Company, the Sharpsburg Bridge Company, the Mercantile Library Hall Company, and paid taxes in Allegheny County and O'Hara Township. Also present are documents certifying William to practice law in Allegheny County and the state of Alabama.

Folder 32 Land surveys and abstract of title, 1803-1879
Folder 33 Stock shares, January 13, 1812
Folder 34 State of Alabama to William M. Darlington, January 5, 1838
Folder 35 Check written to cash, William M. Darlington, June, 1860
Folder 36 Receipt for money paid by William M. Darlington to stockholders of Sharpsburg Bridge Co., September 25, 1865
Folder 37 Auction Catalog, February 13, 1871
Folder 38 Financial Notes, 1879
Folder 39 Agreement, 1881
Folder 40 Taxes, 1881, 1916
Folder 41 Mercantile Library Hall Company Certificate for William Darlington, March 12, 1869

Subseries 4. Diaries

Scope and Content Notes:

William M. Darlington used these twenty-nine diaries to make brief notes about court dates, meetings, payments he received, the purchase of stocks, and other personal and professional transactions. The diaries occasionally mention William's health and personal habits. Many of the entries involve mortgage payments he received for various properties in and around Pittsburgh. Throughout the diaries, he describes the weather at Guyasuta, and occasionally notes the height of the Allegheny River. He also briefly mentions if he had received or sent any letters. In addition, William M. Darlington writes about legal cases in which he was engaged. Social events are occasionally mentioned, including parties at the homes of Mr. Lewis Hutchinson and Mr. McKnight in 1847 and 1848. Entries in 1873/4 and 1881/2 describe the Darlington family's travels in Europe. Three undated diaries contain historical research notes, including a list of officers that served at Fort Pitt, and information on various maps and books in the Guyasuta library. Corporate and personal names mentioned in the diaries include: Allegheny Company, Penn Railroad Company, Pleasant Valley Railroad Company, Monongahela Bridge Company, John B. Herron, J. H. Fibson, John Lundy, H. Fellman, Leo Schmidt, Reverend E. McKnight, E. P. Jones, and Dr. Harrison L. Robson.

Box 4
Folder 1 Diaries, 1844, 1846-1847
Folder 2 Diaries, 1847-1848, 1850
Folder 3 Diaries, 1863-1864, 1869
Folder 4 Diaries, 1870-1872
Folder 5 Diaries, 1873-1874
Folder 6 Diaries, 1875-1876, 1879
Folder 7 Diaries, 1880-1882
Folder 8 Diaries, 1883-1885
Folder 9 Diaries, 1886-1887, 1889
Folder 10 Diaries, undated

Series IV. Mary Carson O'Hara Darlington Papers, 1753-1908

Scope and Content Notes:

Mary Carson O’Hara (1824-1915) enjoyed wealth and prominence inherited from her grandfather, James O’Hara, and from her Philadelphian grandmother, Mary Carson. Mary traced her O’Hara ancestry back to Tiege O’Hara, the last Lord of Leyney, Ireland. She studied at Edgeworth Seminary in Braddock’s Field, now Braddock, Pennsylvania, and later in Staten Island at the renowned Mrs. McLeod’s School. By the time she married William M. Darlington, she was a highly educated woman, well read not only in English, but Italian, German, French and Spanish. Mary and William had four children, three of whom survived into adulthood. The family resided at Guyasuta, an estate near contemporary Sharpsburg, Pennsylvania, that Mary had inherited from her father, Richard O’Hara. James O’Hara purchased the property from the United States government and named it after the famous Seneca leader, Guyasuta (c.1725–c.1794), from whom the Continental Army had purchased the land.

Mary was passionate about regional history, and wrote Fort Pitt and Letters From the Frontier, and The History of Henry Bouquet and the Western Frontiers, 1747-1746, among other works. She also compiled a list of officers of the British and Revolutionary armies buried at the First Presbyterian and Trinity Churches in Pittsburgh. After the death of her husband in 1889, Mary continued expanding the collection of books and manuscripts about western Pennsylvania history. Materials in this series relate to Mary's research and writing, personal correspondence and legal and financial papers that document her vast real estate holdings. Mary compiled and collected historical documents, including Indian treaties; she also maintained records of materials loaned from the family library. Her writings, both epic and non-fiction, represented here, include a brief history of carpets, and her English language adaptation of the German Story of Nibelungen. Two copies of her lengthy manuscript The Exiles of Erin on Ireland and its noble families, are accompanied by an index listing section titles and corresponding page numbers, and a list of secondary sources that Mary used to write the work. A twenty-nine page manuscript written by Mary documents the history of the O'Hara family.

This series also contains two letters from acquaintances, William Roseburg, an investment banker from Pittsburgh, and William R. Mercer of Doylestown, Pennsylvania. A photographic print produced by Mr. Jarrett shows silhouettes of Mary as a small child with her elderly grandmother, Mary Carson O’Hara. Also present is a list of the many mortgages paid to Mary, and a list of bonds she held from companies such as the Aspinwall Delafield Company, the Pittsburgh Railway Company, the McKeesport Railway Company, the Connersville Railway Company, the Youngstown Railway Company, and the West Penn Railway Company.

Box 5
Folder 1 Treaty between the Governor of Virginia and the United Nations of Tudiaus, 1753
Folder 2 School tax receipt, 1839-1851
Folder 3 List of maps loaned to H. M. Bradford, July, 1900
Folder 4 William Roseburg to Mary Carson O'Hara Darlington, July 16, 1904
Folder 5 William R. Mercer to Mary Carson O'Hara Darlington, October 10, 1908
Folder 6 Mortgages and Principles, February 24, 1903 - September 26, 1912
Folder 7 Notes on the History of Carpets, undated
Folder 8 Story of Nibelungen, undated
Folder 9 Notes on O'Hara Family History, undated
Folder 10 Silhouettes of Mary Carson O'Hara Darlington and Mary Carson O'Hara, undated
Folder 11-23 Exiles of Erin, copy 1, undated
Folder 24 Exiles of Erin index, undated
Volume 10 Fort Pitt and Letters from the Frontier, undated

Box 6
Folder 1-18 Exiles of Erin, copy 2, undated

Series V. O'Hara Darlington Papers, 1874-1916

Scope and Content Notes:

O’Hara Darlington (1849-1916), was the oldest child of William M. Darlington and Mary Carson O’Hara Darlington. O’Hara was an accomplished scholar in history, botany, and literature. He attended the Western University of Pennsylvania, and enrolled at Yale University with the class of 1870, where he joined the Delta Kappa Fraternity. Due to ill health, O’Hara left Yale at the end of his first year, but returned in 1871 and obtained his degree with honors. O’Hara shared his family’s devotion to expanding their private library. Following his graduation from Yale, he traveled throughout Europe collecting historical artifacts and literature. O’Hara fell ill in Europe, but regained his strength. After his travels, he resided at Guyasuta. O’Hara bought and sold land in the Pittsburgh area, and ventured into the steam boat industry, investing in the transport of freight and passengers along the Allegheny, Monongahela and Ohio rivers. On August 22, 1916, O’Hara died suddenly at Guyasuta from heat prostration at the age of sixty-seven following a serious illness.

O’Hara shared a passion for photography with his sister, Edith, both of whom belonged to the Pittsburgh Amateur Photographers’ Society. O’Hara collected late nineteenth century British and American literature, principally fiction. Amid his collection of approximately 1,000 books are first editions of novels by Dickens and Thackeray, an early edition of Defoe’s Robinson Crusoe, as well as a bibliography of George and Robert Cruickshank’s sketches.

O’Hara’s papers relate to his book collecting and historical research, including receipts from two book companies and his membership in the Historical Society of Pennsylvania. His personal record-keeping is highlighted by twelve diaries, with entries concerning the weather, and the time when various flowers and trees blossom. O’Hara periodically describes the affect of droughts and heavy snowfall on his land, as well as the height of Pittsburgh’s three rivers. He also includes brief notes about business meetings, court cases and property issues that concern him. The diaries also describe travel including trips to Atlantic City, New Jersey; Florida; and Chicago during the 1893 World’s Columbian Exhibition.

Many of the diaries contain notes of interest accrued on investments, rent and mortgage money paid or earned for the year. Additional materials relate to O’Hara’s finances, include property tax receipts, notes on a legal case involving property he wished to procure, and documentation of various stocks and bonds he held. The series also contains his diploma from Yale and his obituary and funeral bill. For more information, please refer to Box 25, which contains oversized materials.

Box 7
Folder 1 Document summarizing court proceedings, April 17, 1874
Folder 2 Letters from the Historical Society of Pennsylvania, October 18, 1890
Folder 3 Receipts and Letters, November 30, 1891-April 2, 1894
Folder 4 Taxes, O'Hara Township, 1915
Folder 5 Taxes, O'Hara Township and Aspinwall Borough, 1916
Folder 6 Obituary, August 25, 1916
Folder 7 Funeral Bill, September 9, 1916
Folder 8 Yale University crest, 1871
Folder 9 List of Stocks owned by O'Hara Darlington, undated
Folder 10 Personal Diaries, 1890-1892
Folder 11 Personal Diaries, 1893-1895
Folder 12 Personal Diaries, 1896-1898
Folder 13 Personal Diaries, 1899, 1906, 1909
Folder 14 Ground Lease, undated
Volume 53 Yale Memorabilia Scrapbook, 1868-1871

Contains various event programs, exam questions, and tuition statements.

Series VI. Mary Carson Darlington Papers, 1867-1916

Scope and Content Notes:

Mary Carson Darlington (1852-1925), the eldest daughter of William M. Darlington and Mary Carson O’Hara Darlington, attended the Pittsburgh School of Design and was an influential member of the Pittsburgh chapter of the Daughters of American Revolution. Mary Carson Darlington never married and continued to live at her parent’s mansion ‘Guyasuta’ until the later years of her life. When Mary Carson Darlington and her sister, Edith Darlington Ammon, sold the property, they bought a large house in the East End of Pittsburgh. After Edith Darlington Ammon died in 1919, Mary Carson Darlington continued to live alone in their East End home until her death six years later in 1925.

Within Mary Carson Darlington’s papers is tax information on her mother's estate and properties that she had inherited with her sister and older brother upon the death of their parents. Mary Carson Darlington also saved a particular book plate of George Washington given to her by her father, as she too was interested in historical preservation. Also included in this collection are pieces of Artwork created by Mary Carson Darlington, which can be found in series XII.

Folder 15 Taxes, 1915 and 1916
Folder 16 George Washington Bookplate, undated
Folder 17-20 Watercolors and Sketches by Mary Carson Darlington, undated
Folder 21 Photograph of Mary Carson Darlington and friend, undated

Series VII. Edith Dennison Darlington Ammon Papers, 1881-1882, 1908-1919

Scope and Content Notes:

Edith "Darling" Dennison Darlington Ammon (1862-1919) was an important figure among Pittsburgh's social elite during the late nineteenth and early twentieth centuries. She was a well-traveled amateur photographer who played an active role in organizing and leading political and social events.

Edith grew up at Guyasuta and later studied at the Pittsburgh Female College, now known as Chatham University. After a formative trip to Europe with her family, she married Samuel Ammon in 1890, whose proposal she had previously rejected or deferred ten years earlier. Edith and Samuel had no children.

Edith served for several years as the president of the Daughters of the American Revolution (DAR) of Allegheny County, and by 1908 she was leading the third largest DAR chapter in the United States. As president, Edith commanded the battle to preserve the Block House, one of the first structures of Fort Pitt built during the French and Indian War in 1764, from destruction by the Pennsylvania Railroad Company. The DAR also led a campaign against Henry Frick when he planned to relocate the Block House to present day Schenley Park. The Block House remains the oldest building in western Pennsylvania. In addition to her work with the DAR, Edith served alongside H. J. Heinz as co-vice president of the 1908 general committee for Pittsburgh's sesquicentennial events.

This series contains the many letters Edith wrote to her childhood friend and Pittsburgh Female College classmate, Mittie Hemphill, while Edith traveled with her family in Europe from 1881 to 1882. As a woman in her early twenties, Edith writes from each destination, describing the hotels where she and her family stayed, fellow guests, transit, and her experiences passing through customs. Her letters detail sightseeing, particularly art galleries and churches, and her father's research endeavors at the British Museum. Of particular note are Edith's descriptions of archaeological sites in Italy and Egypt, the Salon de Paris, and her distaste for the famous Whistler paintings on display in London. Edith collected or created souvenirs, photographs and artwork during her travels, including a framed photograph of herself at the Temple of Iris in Pompeii, Italy. Mittie's letters describe events in Pittsburgh, including the health of Edith's dogs at Guyasuta and activities of mutual acquaintances in Pittsburgh, among them Minnie Renshaw, Kate McKnight, and Edith's aunt, Helen Evans. In one letter, Mittie mentions Edith's indignation that Samuel Ammon had not waited the appropriate two month grieving period before having a party; the name of the deceased is not mentioned.

Materials related to Edith's involvement in the DAR include an article she wrote for the Pittsburgh Bulletin, and a letter from Thomas P. Roberts regarding the renovations to Fort Pitt co-sponsored by the Fort Pitt Society and the DAR. The collection also includes a letter from Sydney Liggett in response to Edith's request for information about the Sharp family, and a letter from Edith's husband, Samuel A. Ammon, to Mrs. Mary Echler regarding the possession of the Whitaker graveyards. Records of Edith's stocks and bonds, and two copies of a bound volume listing the properties she inherited from her mother's estate are also present.

Box 8
Folder 1 Darlington-Hemphill correspondence envelopes, 1881-82
Folder 2 Edith Darlington to Mittie Hemphill, London, September 25, 1881
Folder 3 Edith Darlington to Mittie Hemphill, London, October 9, 1881
Folder 4 Edith Darlington to Mittie Hemphill, London, October 18-19, 1881
Folder 5 Edith Darlington to Mittie Hemphill, London, October 23, 1881
Folder 6 Edith Darlington to Mittie Hemphill, London, October 24, 1881
Folder 7 Edith Darlington to Mittie Hemphill, Paris, November 7, 1881
Folder 8 Edith Darlington to Mittie Hemphill, Paris, November 25, 26, 28, 1881
Folder 9 Edith Darlington to Mittie Hemphill, Aix les Bains, November 30, 1881-December 2, 1881
Folder 10 Edith Dennison Darlington to Mittie Hemphill, Turin, December 4, 1881
Folder 11 Edith Darlington to Mittie Hemphill, Milan and Genoa, December 5, 7-8, 1881
Folder 12 Edith Darlington to Mittie Hemphill, Florence, December 10-11, 1881
Folder 13 Edith Darlington to Mittie Hemphill, Florence, December 14-15, 19, 1881
Folder 14 Edith Darlington to Mittie Hemphill, Rome, December 24-25, 1881
Folder 15 Edith Darlington to Mittie Hemphill, Rome, December 29-31, 1881 and January 1, 1882
Folder 16 Edith Darlington to Mittie Hemphill, Naples, January 7-8, 1882
Folder 17 Edith Darlington to Mittie Hemphill, Naples, January 12, 1882
Folder 18 Edith Darlington to Mittie Hemphill, Sorrento, January 17-18, 20, 1882
Folder 19 Edith Darlington to Mittie Hemphill, Ship to Alexandria, January 22-25, 1882
Folder 20 Edith Darlington to Mittie Hemphill, Alexandria, January 26, 1882
Folder 21 Edith Darlington to Mittie Hemphill, Alexandria, January 26, 28-30, 1882
Folder 22 Edith Darlington to Mittie Hemphill, On the Nile, January 31, 1882
Folder 23 Edith Darlington to Mittie Hemphill, Cairo, March 2 and 5, 1882
Folder 24 Edith Darlington to Mittie Hemphill, Paris, May 3 and 7, 1882
Folder 25 Edith Darlington to Mittie Hemphill, Paris, May 14, 1882
Folder 26 Edith Darlington to Mittie Hemphill, London, May 19-21, 1882
Folder 27 Edith Darlington to Mittie Hemphill, London, May 23, 1882
Folder 28 Edith Darlington to Mittie Hemphill, London, May 26, 1882
Folder 29 Edith Darlington to Mittie Hemphill, London, May 28, 1882
Folder 30 St. Louis World's Fair Souvenir booklets, 1904
Folder 31 Article in the Pittsburgh Bulletin, June 1911
Folder 32 Thomas P. Roberts to Edith Darlington Ammon, August 18, 1911
Folder 33 Financial papers, January 6, 1908- June 16, 1919
Folder 34 Sydney Liggett to Edith Darlington Ammon, March 16, 1916
Folder 35 Samuel A. Ammon to Mrs. Mary Echler, May 20, 1916
Folder 36 Ground leases (copy 1), April 1, 1913- April 1, 1918
Folder 37 Ground leases (copy 2), April 1, 1918- April 1, 1921
Folder 38 Photographs of the Greenhouse at Guyasuta, undated
Folder 39 Watercolors of Flowers, undated
Folder 40 DAR Insignia, Allegheny Chapter, undated
Volume 54 Pittsburgh Musical Society, 1897-1899

Scrapbook compiled by Edith Darlington who wrote to a friend on January 8, 1914, this is "a book I kept during the active life of our musical society."

Series VIII. Family Papers 1826-1914

Scope and Content Notes:

This diverse group of materials has been divided into three subseries. Subseries 1 contains photographs and ephemera collected or created by the Darlington family during their travels. Subseries 2 contains a few letters to extended family members and genealogical information about the Darlingtons. Subseries 3 documents Darlington properties, particularly the house at Guyasuta. Subseries 4 contains the papers of the Hemphill family, who were good friends of the Darlingtons.

Subseries 1. Photographs and Ephemera

Scope and Content Notes:

The Darlington family collected souvenirs during their travels, including: a printed booklet from Washington, D.C.; souvenir cabinet cards of Florida locations such as Jacksonville, Silver Springs, Palatka, Leesburg, St Augustine, Daytona Beach, the Ocklawaha River, and Lake Worth; photographs of St. Michael's church in Charleston; and photographs of the basalt structures at the Giant's Causeway in North Ireland. Photographs of the Darlingtons during their travels include an image of Mary Carson Darlington and Edith Darlington with friends taken at Pikes Peak, Colorado, a photograph of Mary Carson O'Hara Darlington with her three children in front of Kenilworth castle, Warwickshire, England, and images from a Darlington family trip to Barcelona Harbor on Lake Erie in Pennsylvania.

Additional photographs include: Hillborn Darlington; an unknown woman who could be Mary Carson O'Hara Darlington; and a photograph taken by O'Hara Darlington of his sisters with their friend Lilia. In addition to these photographs, a children's book includes the childhood signatures of O'Hara Darlington, Mary Carson Darlington and Edith Darlington on the front end leaf, and a number of unsigned water colors and sketches of natural scenes, likely done by Mary Carson O'Hara Darlington or her daughter, Mary Carson Darlington. For more information, please refer to Box 25, which may contain related oversized materials.

Box 9
Folder 1 Washington, D.C., Souvenir booklet, 1884
Folder 2 Florida color postcards, 1884
Folder 3-13 Photographs from Florida trip, 1884
Folder 14 Photograph on Pikes Peak, September 3, 1892
Folder 15 Photographs from Barcelona Harbor, 1897
Folder 16 Darlington Family Photographs, undated
Folder 17 St. Michael's Photographs, undated
Folder 18 Photograph of Mary Carson, undated
Folder 19 Photograph Warwickshire, England, undated
Folder 20 Panoramic illustration of Victoria, British Columbia, undated
Folder 21 The Adventures of a Bear, and a Great Bear Too, undated
Folder 22 Northern Ireland photographs, undated
Folder 23 Trip to Honda, 1884
Folder 24-27 Water colors and sketches, undated

Box 28
Item 1-3 Framed photographs, undated
1. James O'Hara (portrait)
2. William M. Darlington (portrait)
3. Mary O'Hara Darlington (shown painting in greenhouse at Guyasuta)

Subseries 2. Extended Family Papers and Genealogical Materials

Scope and Content Notes:

This subseries contains genealogical materials documenting the Darlingtons, O'Haras and McCulloughs, including the Darlington family coat of arms. The subseries also includes correspondence from Darlingtons not represented by an independent series of materials, including the Third Earl of Darlington, Samuel Darlington and J. Darlington.

Box 10
Folder 1 J. Darlington to Jacob Burnett, July 31, 1799
Folder 2 Letter written by the Third Earl of Darlington, July 20, 1826
Folder 3 Darlington Genealogical Papers, undated
Folder 4 Birth and Death Date Listings for the McCulloughs, undated
Folder 5 William Wilkins to Samuel Darlington, undated
Folder 6 Darlington Coat of Arms, undated
Volume 51 The Genealogy of the Darlington Family, 1900

Subseries 3. Family Properties

Scope and Content Notes:

The items listed below document the layout and dimensions of the Guyasuta mansion and surrounding property, including floor plans and gas pipe diagrams. Photographs show an additional Darlington property at Marshall Avenue and Brighton Road in Allegheny City. A land lease for property owned by Samuel Darlington and a list of properties sold on behalf of Jane McCullough are also present. For more information, please refer to Box 25, which contains oversized materials.

Folder 7 Guyasuta Road map, September 30, 1890
Folder 8 Drawing of Guyasuta and environs, undated
Folder 9 Rooms at Guyasuta, undated
Folder 10 Guyasuta Floor Plan, undated
Folder 11 Gas Pipes, undated
Folder 12 Land Lease for Samuel Darlington, January 1, 1828
Folder 13 Real Estate sold on behalf of Jane McCullough, November 17, 1830-August 13, 1831

Subseries 4. Hemphill Family Papers

Scope and Content Notes:

The Hemphills were close friends of the Darlington family. Collected here are a small number of family letters, including an 1861 letter from a Union soldier at Fort Lyon, and an 1886 letter describing a grandfather's tales about "bloody murders" at the hands of neighboring Indians along the Youghiogheny River. A handwritten Hemphill family tree is present, as are commemorative buttons and badges representing the National Encampment in Syracuse, New York, in September 1900; the 8th Annual Convention of the National Rivers and Harbors Congress; the 1900 Democratic National Convention in Kansas City, Missouri; and a 1914 bracelet medallion that reads "Come to Pittsburgh." For more information, please refer to Box 25, which contains oversized information.

Folder 14 Hemphill family tree, September 2, 1830
Folder 15 Letter written from Fort Lyon to Cousin Annie, October 16, 1861
Folder 16 Cousin Lizzie to Maggie, August 26, 1863
Folder 17 Unknown to Cousin George, April 12, 1886
Folder 18 Letter written by Cousin H.H. Anderson, undated

Series IX. Bound News Clipping Volumes, 1898-1917

Scope and Content Notes:

This series consists of 29 bound volumes of newspaper clippings. These clippings may have come from a subscription service and many of the books have Mary O'Hara Darlington's name handwritten inside the front cover. The Darlingtons, particularly Mary O'Hara Darlington, may have pasted the clippings into the books. Each volume collects articles on a particular topic or event from local, national and international newspapers and magazines. However, each volume contains some clippings that do not seem to be directly related to the topic of the volume. Some volumes have a partial handwritten index. Many clippings do not contain source or date information. The title, number and dates listed below reflect the original handwritten inscriptions on the spine of each volume.

Volume 11 The War between the United States and Spain, Vol. I, 1898
Volume 12 The War between the United States and Spain, Vol. II,
Volume 13 The War between the United States and Spain, Vol. III, 1898
Volume 14 The War between the United States and Spain, Vol. IV, 1898
Volume 14a The War between the United States and Spain, Vol. V / The War in the Philippines, Vol. I 1898-1899
Volume 15 The War between the United States and Spain Supplement, 1898
Volume 16 The War in the Philippines / Events after the War between the United States and Spain, Vol. II, 1899
Volume 17 The War in the Philippines / Events after the War between the United States and Spain, Vol. III, 1900
Volume 18 The War in the Philippines / Events after the War between the United States and Spain, Vol. IV, 1900-1901
Volume 18a The War in the Philippines / Affairs in Cuba and Puerto Rico, Vol. V 1901-1902, 1906
Volume 19 The Philippines [and] Puerto Rico, Vol. IV, 1906-1907
Volume 20 The Philippines, Mexico [and] Cuba, 1914-1916
Volume 21 The War in China, Vol. I, 1900
Volume 22 The War in China, Vol. II, 1900-1901
Volume 23 The War in South Africa, 1899-1902, 1906
Volume 24 Wars between Turkey and Italy and Italy and the Balkan States and Turkey, 1912-1913
Volume 25 The Great War of 1914, September-October 1914
Volume 26 The Great War of 1914, November-December 1914, January 1915
Volume 27 Events of Interest: Earthquakes and Volcanoes, 1901-1906
Volume 28 Events of Interest: Earthquakes and Volcanoes, 1906-1907
Volume 29 Events of Interest: North and South Pole, 1909-1913
Volume 30 Events of Interest, 1898-1907
Volume 31 Events of Interest, 1907-1910
Volume 32 Events of Interest, undated
Volume 33 Events of Interest: Biography, 1910-1913
Volume 34 Events of Interest: Biography, 1914-1917
Volume 35 Events of Interest: Biography, undated
Volume 36 Events of Interest: War between Russia and Japan, 1904-1906
Volume 37 Untitled, undated

Series X. Scrapbooks, ca. 1850-1950

Scope and Content Notes:

The Darlington family scrapbooks consist of 11 bound volumes documenting local and national events. The items have been retained in their original arrangement, but lack any discernable order. Dated clippings range from late nineteenth to early twentieth centuries. The majority of the items in the books are newspaper clippings from local and national newspapers and detail people, places, and items of interest in and around Pittsburgh, with a number of clippings about the Darlingtons themselves. Most are undated, though some have printed or handwritten dates on them, and lack the name of the publication. Programs, sheet music, maps, sketches appearing in newspapers, magazine clippings, obituaries, and clippings concerning areas other than Pennsylvania are also included in the scrapbooks.

Some of the books contain alphabetized indexes of the clippings and others handwritten indexes affixed to or written on the inside covers of the scrapbooks. One book contains the name of the book's binder, the date it was bound, and the cost of binding, while another has the name Mary O'Hara Darlington inscribed on the inside of the front cover.

Volume 38 Scrapbook, ca. 1850s-1880s

Inside cover signed by William M. Darlington. Contains lithographs and engravings of noted individuals. Only first half of scrapbook is complete.

Volume 39 Scrapbook, 1891-1898

Inside cover signed by Mary O'Hara Darlington, Guyasuta. Pages cut from album (disbound). Contains newsclippings of events of interest, 1891-1898 (inc. index).

Volume 40 Scrapbook, ca. 1907-1912

Mostly clippings pertaining to the subject of art and Pittsburgh Artists Association; likely assembled and kept by Mary Darlington.

Volume 41 Scrapbook, ca. 1860s-1880s

Mostly clippings pertaining to the history of Pittsburgh, likely created by William Darlington.

Volume 42 Scrapbook, ca. 1870s-1880s

Noted as Vol. 2 in the inside cover; likely created by William Darlington.

Volume 43 Scrapbook, ca. 1880-1920s

Darlington family scrapbook containing wealth of information about family members and Guyasuta.

Volume 55 Scrapbook, ca. 1820s-1870s

Newsclippings documenting Pittsburgh history and ninteenth century obituaries and other matters. Index in back.

Volume 56 Scrapbook

Engravings and prints with index; most likely created by O'Hara Darlington.

Volume 57 Scrapbook, 1879-1922

Inside cover inscribed: Minnie O'Hara Darlington, Christmas 1879, Guyasuta. Contains newsclips.

Volume 58 Scrapbook

Pittsburgh and U.S. biographies and history newsclippings.

Volume 59 Scrapbook

Newsclippings of Pittsburgh and Virginia families and many other matters with index.

Series XI. Photographs, 1881-1882, 1885-1888

Scope and Content Notes:

This series contains 155 photographs in five albums taken by Edith Dennison Darlington Ammon and her brother, O'Hara Darlington, from 1885 through 1888. The photographs document family, friends, leisure activities, and the artistic approach to photography shared by Edith and O'Hara. Most of the photographs are taken in and around the family home, Guyasuta, and the surrounding area. The fifth album in this collection contains photographs from the Pittsburgh Amateur Photographers' Society, a social club founded in 1885 in which Edith and O'Hara actively participated. All the photo albums are scanned and available online.

The series also comprises two scrapbooks containing photographs and other memorabilia documenting the Darlington family trip to Constantinople, Greece, Italy and Egypt in 1881-1882.

Volume 44-48 Photo Albums, 1885-1888
Volume 60 Darlington Family Trip, Volume 1, 1881-1882

Photographs and other memorabilia from Constantinople, Greece, Italy, etc.

Volume 61 Darlington Family Trip, Volume 2, 1882

Photographs and other memorabilia from Egypt.

Series XII. Mary Carson Darlington Artwork, 1867-1925

Scope and Content Notes:

This series contains 116 pieces of artwork created by Mary Carson Darlington between 1867 and her death in 1925. They contain landscapes and portraits mainly in watercolor. The large paintings have been matted and stored separately from the family papers.

Boxes 11-24 Oversize Artwork (Artwork in boxes 20-24 are located in Flat Files 14-7 through 14-10)

Series XIII. Oversize Materials, 1785-1899

Scope and Content Notes:

This series contains land deeds, survey information, and indentures held by the Darlington Family, dating from 1785 to 1899. Also included in this series are oversized documents relating to the collection, including: a diploma, medals, buttons, photos, deeds, and land surveys. The materials in this series relate to areas of collection interests to the Darlington family and owned by the Darlington family. These files are too large to be filed within the preceding manuscript series for family members, and contains information about them, their research interests, education, and land holdings.

Box 25
Folder 1 O'Hara and Richardson, Survey Information, October 17, 1785
Folder 2 Mary C. Darlington, Land Warrant, October 17, 1785
Folder 3 William Bamer, Deed, January 18, 1793
Folder 4 Robert Campbell, Deed, October 1817
Folder 5 Benjamin Darlington, Deed, November 29, 1822
Folder 6 James Rope, Indenture, 1829
Folder 7 Richardson, Patent (copy), December 17, 1839
Folder 8 William Darlington, Deed, July 19, 1850
Folder 9 Mary O'Hara and Mary Darlington, May 28, 1857
Folder 10 William and Mary Darlington, March, 23, 1887
Folder 11 Mary Darlington, Deed, May, 8, 1890
Folder 12 O'Hara Darlington, Taxes, January 15, 1893
Folder 13 Inventory of Darlington Family Lot Surveys, undated
Folder 14 Sale of Land, undated
Folder 15 David Stule, Land Survey Information, undated

Box 26
Folder 1 Sam Jones, Deed, January 4, 1806
Folder 2 William Mann, Indenture, October 7, 1811
Folder 3 Alex Young and Fredrick Myers, Indenture, May 1812
Folder 4 Act to erect a Bridge by Governor, August 13, 1845
Folder 5 Hearman Demery, William Crogan, James Roph, and Mary O'Hara to James, Deed, January 26, 1846
Folder 6 John White and Mary O'Hara, Indenture, April 1, 1848
Folder 7 Mary O'Hara to John White, Deed, April 22, 1848
Folder 8 James O'Hara, Indenture, April 5, 1849
Folder 9 James O'Hara, Indenture, April 5, 1849
Folder 10 John Whiteknife and Mary O'Hara, Deed, April 14, 1851
Folder 11 Charles Shirk, Deed, May 3, 1856
Folder 12 William Boyle, William Darlington, and Mary O'Hara, Deed, September 16, 1856
Folder 13 William Darlington and William Johnson, Indenture, November 14, 1859
Folder 14 Mary Darlington, Deed, March 21, 1866
Folder 15 Mary Darlington, Deed, March 21, 1866
Folder 16 Mary Darlington, Deed, March 21, 1866
Folder 17 Mary Darlington, Deed, March 21, 1866
Folder 18 William and Mary Darlington, Deed, November 4, 1884
Folder 19 Mary Darlington, Deed, August 23, 1899

Box 27
Folder 1 William Trent's Account of Proceedings with Six Nations of Indians and Allies, November 17, 1753
Folder 2 William Darlington, Certificate of Acceptance into the Bar, November 20, 1837
Folder 3 William Darlington, Certificate of Acceptance to the Academy of Natural Sciences, November 24, 1868
Folder 4 O'Hara Darlington, Yale Diploma, 1871
Folder 5 William Darlington, Survey of Darlington Land on Loyalhanna Creek, May 9, 1879
Folder 6 Buttons and Badge Memorabilia, 1900-1914
Folder 7 O'Hara Darlington, Certificate of Membership in Historical Society of Pennsylvania, undated
Folder 8 Four Unlabeled Photographs, undated
Folder 9 Design notes for library bookcases, undated
Folder 10 Deed to the Estate of Jane McCullough, undated
Folder 11 Portrait of William M. Darlington, undated
Folder 12 Three Paintings of Natural Scenes, undated
Folder 13 Floor plan of Guyasuta, undated
Folder 14 Photos of the Darlington Property at Marshall Avenue and Brighton Road, undated
Folder 15 Darlington Index List, undated
Box 29 Plan Book ca. 1860-1884

Contains lot and block information (some drawn by hand) for Pittsburgh and surrounding area; not necessarily property owned by Darlington family, but collected for historic reasons.