- Peter Larew Papers, 1790/18921
- Pittenger Family Letters, 1841/18751
- Roy Bird Cook, Collector, Papers regarding the Civil War in Southern West Virginia, 1844/1938, bulk 1861/18671
- Roy Thistle, Collector, Scrapbook regarding Ohio River History, 1855/19341
- Sabra Lucinda (Miner) Sturgiss Papers, 1838/19091
- Stateler/Statler Family Genealogy and History, 19921
- Talbott-Tolbert Family Papers, 1784/19311
- Thomas Green (1798-1881) Diary, 1826/18271
- Thomas Scott (1772-1856), Facsimiles and Transcriptions of Papers1
- U.S. Army Corps of Engineers, Photographs of Operations in Pennsylvania, Ohio, New York, and the Pacific Northwest, 1914/19191
- United Mine Workers of America, District 6, Records, 1942/19521
- Ward Family History, 19941
- William McCleery (1741-1821) Papers, 1770/1945, bulk 1770/18571
- Wilson-Lewis Family Papers, 1693/19421
- Wood County Records, 18451