- 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
- Steamboats Records, 1877/19391
- Union Carbide Corporation, Hawk's Nest Project, Papers, 1873/19661
- Upper Monongahela Valley Planning Records, 1924/19491
- Ward Engineering Company Archives and Manuscripts, 1871/19771
- West Virginia Pulp and Paper Company Papers, 1892/19291
- Woodbridge-Blennerhassett Papers, 1797/19351