- Columbia Sesquicentennial Commission (S.C.)1
- Committee of the Centennial Celebration (Columbia, S.C.)1
- Communication Workers of America1
- Confederate States of America. War Dept.1
- Confederate Widows' Home1
- Cook, Joe1
- Cooper, I. M.1
- Corley, [Manuel] Simeon (1823-1902)1
- Councell, E. C.1
- Councell, E.C.1
- Courtenay, William Ashmead (1831-1908)1
- Courtenay, William Ashmead, 1831-19081
- Cowling, Dale1
- Craps, John T.1
- Crawford, Agnes1
- Crietzberg, A. M.1
- Cromwell, S.T.1
- Crouch and Gray1
- Currell, W. S. (William Spenser), 1858-19431
- D. M. B.1