Names
- Charles Rollin Post1
- Charles William Post1
- Charlesworth, James C. (James Clyde), 1900-1974.1
- Charlesworth, James Clyde, 1900-1
- Chester, Colby, Jr.1
- Church, Michael P. (Michael Paul), 1907-1
- Citizen's Industrial Association of America1
- Citizens' Industrial Association of America.1
- Clark, Frank Monroe, 1915-1
- Clark, Joseph S.1
- Cleveland, Harlan.1
- Climax Corn Company1
- Close, Edward Bennett, 1882-1955.1
- Cohen, Wilbur J. (Wilbur Joseph), 1913-1987.1
- Coleman, John Strider, 1897-1958.1
- Collins, John J. (John Joseph), 1935-1
- Collins, LeRoy.1
- Columbia University1
- Committee for a More Beautiful Capitol1
- Connolly, John W.1