Names
- Colt, Harris Dunscomb, 1861-1959.1
- Comstock, William Alfred, 1877-1949.1
- Condon, Randall J. (Randall Judson), 1862-1931.1
- Conference on Near Eastern Affairs (1922-1923 : Lausanne, Switzerland)1
- Cook, William Wilson, 1858-1930.1
- Cooley, Mortimer Elwyn, 1855-1944.1
- Coolidge, Calvin, 1872-1933.1
- Coolidge, Calvin, Pres, U.S., 1872-1933.1
- Copeland, Royal S. (Royal Samuel), 1868-1938.1
- Copeland, Royal Samuel, 1868-1838.1
- Copley, Almon Ward, 1867-1
- Copley, Almon Ward, 1876-1
- Corwin, Edward Samuel, 1878-1963.1
- Cosmos Club (Washington, D.C.)1
- Council on Library Resources.1
- Courant, Paul.1
- Couzens, James Joseph, 1872-1936.1
- Couzens, James, 1872-1936.1
- Cram, Esther Marsh.1
- Crane, Ronald S. (Ronald Salmon), 1886-1967.1