- Oscar Doane Lambert, Historian, Papers regarding Historical Research1
- Pauline Morehead Ash, Collector, Papers1
- Philip Bagdon, Research Notes regarding Cass, West Virginia1
- Preston County (W. Va.) Court Records and Miscellaneous Papers1
- Preston County Miscellaneous Papers1
- Price Family Papers1
- Randolph H. Lytton Historical Virginia collection1
- Robert Truax Washington, D.C. transportation collection1
- Roy Bird Cook, Collector, Papers regarding the Civil War in Southern West Virginia1
- Roy Bird Cook, Collector, Tavenner Family Papers and Other Material1
- Rush Meadows Papers1
- Sanborn Map Company Fire Insurance Maps for West Virginia1
- Slaughter's Creek Coal & Land Company Records1
- Stiles Family Oil and Mining Company Records1
- Storer College Architectural Drawings, Diplomas, and Other Material1