Names
- Clark, Tom C. (Tom Campbell), 1899-1977.1
- Coblentz, Edmond D.1
- Cohen, Benjamin V.1
- Comstock, William Alfred, 1877-1949.1
- Cooley, Mortimer E. (Mortimer Elwyn), 1855-1944.1
- Corcoran, Thomas Gardiner, 1900-1
- Coughlin, Charles E. (Charles Edward), 1891-1979.1
- Couzens, James, 1872-1936.1
- Crapo family.1
- Crapo, David1
- Crapo, David.1
- Crapo, Henry Howland, 1804-18691
- Crapo, Henry Howland, 1804-1869.1
- Crapo, Stanley T.1
- Crapo, William Wallace, 1830-1926.1
- Creighton, Joseph.1
- Crittenberg, Willis.1
- Cromwell, James Henry Roberts.1
- Cropley, Charles Elmore.1
- Cummings, Homer S.1