- John Pomroy, Army Captain, Letter regarding Frontier War in the Upper Ohio Valley, 17921
- John Rogers (1786-1864) Papers, 1777/18571
- John Rogers (1786-1864) Papers, 1823/18521
- John Rogers (1786-1864) Papers, 1828/18511
- John Rogers Correspondence, 1788/18701
- Lewis Family Papers, 1825/19361
- Louis H. Draper Artist Archives (VA-04), 1945/20051
- McIlroy Family Papers, 1829/19431
- Mercer Family Genealogy, 1988/19951
- Minnie Kendall Lowther Papers, 1907/19451
- Monongah Mine Disaster Papers, 1907/19521
- Nat T. Frame (1877-1948) Papers, 1914/19481
- National Telephone Company of Pennsylvania, Incorporation Certificate, 19091
- Ohio County, Wishart vs. White, Civil Suit Transcript, 18421
- Paul Stevens map collection, 1541/17781