Names
- Church Peace Union1
- Church Peace Union.1
- Circle Pines Center.1
- Clark, Thomas Curtis, 1877 19541
- Clark, Thomas Curtis, 1877-1953.1
- Claxton, Philander Priestley, 1862-1957.1
- Clements, William L. (William Lawrence), 1861-1934.1
- Cleveland, Frederick Albert, 1865-1946.1
- Cody, Hiram Sedgewick.1
- Cole, Arthur Charles, 1886-1
- Cole, Arthur Charles, 1886-1976.1
- Coleman, George William, 1867-19501
- Coleman, George William, 1867-1950.1
- Committee for Protection of the Foreign Born.1
- Committee to Aid Spanish Democracy.1
- Conant, Isabel Fiske1
- Conant, Isabel Fiske.1
- Condon, Randall Judson, 1862-1931.1
- Congress of Racial Equality.1
- Cook, William W. (William Wilson), 1858-1930.1