This series contains the papers created by Taylor and MacKey in the legal offices of Taylor, Gilfillan & MacKey in the 1860s, and, later, Taylor & MacKey. These chronologically arranged "legal documents" include: drafts of real estate agreements, notes for cases (some of which identify the client), ledgers of client payments, attorney fee forms and checks, subpoenas, witness depositions, and ephemera. This series also contains limited correspondence that relates the Taylor & MacKey firm. The materials reflect the breadth of their practice, including their work for clients in their town of Oil City, Venango County. The firm also represented clients from Altoona, Meadville, Erie, Pittsburgh, and Cleveland, as well as towns in upstate New York. These papers refer to property loss cases, such as Ellis Harris vs. Imperial Fire Co. and estate and real estate cases heard in the Court of Common pleas of Venango County. Also present are drafts of land agreements presumably created by Taylor & MacKey. Many of the papers relate to clients in the oil, mining and railroad businesses, including the Tank Oil Company, the Atlantic Petroleum Company, the Pithole Creek Petroleum Company, the Osceola Oil Company, the Island Oil Company, the Fountain Oil Company, Ritchie Oil Company, and the Oil Well Supply Company. The firm also practiced criminal law, including two murder cases in 1863, and cases argued before the Orphan's Court. The majority of these papers are arranged chronologically. However, depositions and court transcripts from cases of note are located in Box 8, including a worksite bludgeoning murder between log rollers, an 1863 stabbing death, two undated shooting deaths, and the trial of a man accused of raping an eleven-year-old neighbor in the woods near her home.