- Craddock, G. R. (Garnet Roy), 1926-1
- Craig and Gaulden (Firm)1
- Craig, Jim (James Telford)1
- Crouch, Sydney James Leonhardt, 1889-19691
- Dairy Building (Clemson, S.C.)14
- Dairy barns7
- Dairy cattle1
- Dairy farms9
- Daniel Hall (Clemson, S.C.)25
- Daniel House (Clemson, S.C.)87
- Daniel, Charles E. (Charles Ezra), 1895-19641
- Davidson, A. Wolfe (Abraham Wolfe), 1903-19813
- Davis, James Richard, 1947-1
- Davis, Tracy1
- Deans (Education)1
- Decoration and ornament, Architectural1
- Dedication services1
- Dedications1
- Department of Security Building (Clemson, S.C.)2
- Derrick, Butler Carson, Jr., 1936-20141