Names
- Cook, William W. (William Wilson), 1858-1930.1
- 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
- Council of Ten.1
- Couzens, James Joseph, 1872-1936.1
- Creighton, Frank W.1
- Cummings, E. E. (Edward Estlin), 1894-1962.1
- Cutler, Richard Loyd, 1925-1
- Davidow, Lawrence S.1
- Denby, Edwin, 1870-1929.1
- Developing Great Lakes Megalopolis Research Project.1
- Devitt, Joseph.1
- Doan, Leland Ira, 1894-1974.1
- Dondero, George Anthony, 1883-1968.1