- Clergy--United States1
- Clippings (Books, newspapers, etc.)1
- Clothing & dress--South Carolina1
- Cochran, Thad1
- Coker, Mr8
- Cole, C. Alfred--Correspondence1
- Cole, Jack Wallace2
- Cole, Jack Wallace--Correspondence8
- Colhoun, John Ewing, 1791-18471
- Columbia (S.C.)1
- Columbia (S.C.)--Pictorial works2
- Columbia (S.C.)--Social conditions--Pictorial works2
- Community theater1
- Confederate States of America Army South Carolina Cavalry Regiment, 6th Company C1
- Confederate States of America. Army. South Carolina Infantry Regiment, 4th.1
- Confirmation records--South Carolina--Pendleton2
- Contracts1
- Cornish, Andrew H., d. 18752
- Cornish, Andrew H., d. 1875--Correspondence2
- Cornish, Andrew H., d. 1875--Manuscripts1