Tax-Book of Pitt Township, Allegheny County, Pa.

Contains a bound volume that is a copy of tax records from Pitt Township, Allegheny County, Pennsylvania, from 1795 to 1798.
Contributor: University of Pittsburgh

Thaddeus Sheldon Papers

Consists mostly of letters, speeches, meeting minutes, financial statements of the Harmonia organization, and papers on various subjects such as education, the future of America, and sacred matrimony.
Contributor: University of Pittsburgh

The Bulletin, Pittsburg Bulletin, and The Bulletin Index

Issues of the Pittsburgh based society and cultural publication, The Bulletin, and its succeeding titles, the Pittsburg Bulletin, and The Bulletin Index from 1887 to 1949.
Contributor: University of Pittsburgh

Theodore M. Finney Music Library Collection

Rare and manuscript music materials, including early printed music scores and music manuscripts, autograph letters, and glass plate photographs.

Thomas G. Masaryk Papers

Contains mostly unpublished drafts of Masryk's letters and memoranda, interviews, and articles and drafts of later published writings. The date range of the collection (1918-1919) is significant as it was during this period that Masaryk’s ultimate goal of Czechoslovak sovereignty came to fruition.

Thomas Mellon and William B. Negley Day Book

Consists of a day book containing names of clients and records of payment from the seven-year partnership between Thomas Mellon, founder of Mellon Bank and patriarch of the Mellon family, and his nephew, William B. Negley.
Contributor: University of Pittsburgh