- Thomas L. Williams collection1,856
- A. Willis Robertson Papers1,230
- Siler Family Papers1,145
- O.W. Riegel Papers1,093
- Long/Trail Southeastern West Virginia Historical Records691
- United Mine Workers of America, Health and Retirement Funds, Records674
- Director's Correspondence (RG-01)672
- Harley Martin Kilgore (1893-1956), Senator, Papers628
- Philip S. Hench Walter Reed Yellow Fever collection571
- West Virginia University, President's Office, Records503
- Francis J. McNamara papers460
- Gregory A. Prince Mormon Studies Collection438
- American Public Transportation Association records351
- John T. Parsons Papers337
- Carl A. "Pappy" Fehr papers324