- Cherokee Indians--South Carolina21
- Choctaw Indians--Government relations--To 17891
- Civil Rights, Newman, I. DeQuincey (Isaiah DeQuincey), 1911-19851
- Clark, Roy C., Meadowlake, Middleton-Rosemond United Methodist, Columbia (S.C.)1
- Clay, Joseph, 1741-1804--Correspondence3
- Coastal Plains Board1
- Columbia (S.C.), Columbia College1
- Columbia (S.C.), Orangeburg (S.C.), University of South Carolina, Civil Rights1
- Columbia (S.C.)--Social conditions12
- Comptroller General, State of South Carolina, South Carolina State Prayer Breakfast, Carolina Inn, Columbia1
- Confederate States of America. Army--Chaplains1
- Connecticut--History--Revolution, 1775-17839
- Constitutional history--United States.2
- Conway, Thomas, 1733-180012
- Correspondence2
- Council on Ministries, Grant, Karen Ross, Newman, I. DeQuincey (Isaiah DeQuincey), 1911-1985, Middleton-Rosemond United Methodist, Columbia (S.C.), Meadowlake1
- Cumberland Presbyterian Church1
- Daniel, Michael R., Meadowlake, Summerhill, Forest Park, South Carolina Department of Mental Health1
- De Kalb, Johann, 1721-178017
- Deane, Silas, 1737-178932