Names
- Collier, William Miller, 1867-1956.1
- Comstock, William Alfred, 1877-1949.1
- Cooley, Charles Horton, 1864-1929.1
- Cooley, Mortimer Elwyn, 1855-1944.1
- Cooley, Thomas McIntyre, 1824-1898.1
- Corwin, Edward Samuel, 1878-1963.1
- Coudert, Frederic R. (Frederic René), 1871-1
- Coudert, Frederick R. (Frederick Rene), 1871-1
- Coulter, Glenn Monroe, 1894-1
- Couzens, James Joseph, 1872-1936.1
- Crane, Robert Treat, 1880-1
- Crane, Robert Treat, b. 1880.1
- Crane, Verner W., 1889-1974.1
- Crane, Verner Winslow, 1889-1
- Cross family.1
- Cross, Arthur Lyon, 1873-19401
- Cross, Arthur Lyon, 1873-1940.1
- Curtis, Heber Doust, 1872-1942.1
- Curtiss, Ralph Hamilton, 1880-1929.1
- Cushny, Arthur R. (Arthur Robertson), 1866-1926.1