- Cooper, John T.1
- Cooperative Recreation Service (Delaware, Ohio)3
- Coopers Rock Foundation (Morgantown, W. Va.)2
- Coppell, George.1
- Corbett, Christopher.1
- Core, Earl Lemley, 1902-1984.21
- Corey, Albert Bickmore.1
- Corley, Jim.1
- Cormack, Beale.1
- Cormier, David.1
- Cornell, F. D. (Ferris Dewey), d. 1950.3
- Cornerstone Genealogical Society (Waynesburg, Pa.)1
- Cornwell, C. E. (Clifford E.)1
- Cornwell, John J. (John Jacob), 1867-1953.5
- Corporation Tax Bureau (Charleston, W. Va.)1
- Correctional Education Association. Region II.2
- Corridor H Alternatives (Kerens, W. Va.)2
- Corson, Juliet, 1842-1897.1
- Corson, Louis Damarin.1
- Costello, Joseph.2
