Names
- Congress of Industrial Organizations (U.S.)1
- Congressional Union for Woman Suffrage (U.S.)1
- Connable, Alfred B. (Alfred Barnes), 1904-1
- Cooley, Mortimer E. (Mortimer Elwyn), 1855-1944.1
- Cooley, Mortimer Elwyn, 1855-1944.1
- Coolidge, Calvin, 1872-1933.1
- Copeland Royal Samuel, 1868-1938.1
- Copeland, Royal S. (Royal Samuel), 1868-1938.1
- Couzens, James Joseph, 1872-19361
- Couzens, James Joseph, 1872-1936.1
- Cramton, Louis C. (Louis Convers), b. 1875.1
- Cramton, Louis Convers, 1875-19661
- Cramton, Louis Convers, 1875-1966.1
- Croswell, Charles Miller, 1825-1886.1
- Cudlip, William B., 1904-1988.1
- Cudney, Charles H., 1828-1904.1
- Currie, Gilbert Archibald, 1882-19601
- Currie, Gilbert, 1882-1960.1
- Curtis, William Eleroy, 1850-1911.1
- Cutcheon, Byron M., 1836-1908.1