Names
- Cadman, Samuel Parkes, 1864-1936.1
- Cajori, Florian, 1859-1930.1
- Campbell, Caroline Belzora, 1859-1926.1
- Campbell, Henry M. (Henry Munroe), 1854-1926.1
- Carnegie, Dale, 1888-1955.1
- Carnegie, Louise Whitfield, 1857-1946.1
- Carroll, Eber Malcolm, 1893-1959.1
- Carruth, Hayden, 1862-19321
- Carruth, Hayden, 1862-1932.1
- Carton, Augustus C.1
- Catlin, George B. (George Byron), 1857-1934.1
- Central Committee for Conscientious Objectors.1
- Chamberlain, Samuel Selwyn, 1851-19161
- Chamberlain, Samuel Selwyn, 1851-1916.1
- Channing, Edward, 1856-1931.1
- Chapman, Charles E. (Charles Edward), 1880-1941.1
- Chase, Lew Allen, 1879-1957.1
- Cheyney, Ralph1
- Cheyney, Ralph.1
- Chinard, Gilbert, 1881-1972.1