Names
- Coblentz, Edmond D.1
- Cohen, Benjamin V.1
- Coleman, John Strider, 1897-1958.1
- Comstock, William Alfred, 1877-1949.4
- Conant, James Bryant, 1893-1978.1
- Connable, Alfred B. (Alfred Barnes), 1904-1
- Cooley, Mortimer E. (Mortimer Elwyn), 1855-1944.1
- Cooley, Thomas McIntyre, 1824-1898.1
- Coolidge, Calvin, 1872-1933.1
- Coolidge, Grace Goodhue, 1879-1957.1
- Copeland, Royal S. (Royal Samuel), 1868-1938.1
- Coply, Alexander Bennett, 1822-1899.1
- Corcoran, Thomas Gardiner, 1900-1
- Coughlin, Charles E. (Charles Edward), 1891-1979.1
- Couzens, James, 1872-1936.3
- Crapo, Henry Howland, 1804-1869.1
- Crary, Isaac Edwin, 1804-1854.1
- Creighton, Joseph.1
- Crittenberg, Willis.1
- Cromwell, James Henry Roberts.1