- College of Pharmacy; Waring Historical Library (MUSC)1
- College of Pharmacy;Waring Historical Library (MUSC)1
- Colleton County Memorial Library31
- Colleton County Museum, Walterboro, S.C.3
- Colleton County Museum, Walterboro, S.C. www.colletoncounty.org/museum9
- Colleton County Museum, Walterboro, S.C. www.colletoncounty.org/museum2
- Colleton County Museum,Walterboro, S.C. www.museum.org1
- Columbia College186
- Columbia College, South Carolina1
- Congaree National Park706
- Converse College, Archives & Special Collections25
- Cookware Company of America1
- Corn Products Refining Co.2
- Corn Products Refining Company2
- Cribben and Sexton Company1
- Crisco2
- Crosley4
- Crown Cork & Seal Co., Inc.1
- Curtice Brothers Co.1
- Deepfreeze;Motor Products Corporation1