- Cochran, Thad1
- Congressional Youth Leadership Council1
- Consumer Federation of America1
- Cooper, John Sherman, 1901-19912
- Cotton, Norris, 1900-19891
- Craig, May, 1889?-19751
- Cramer, William C., 1922-20033
- Curtis, Carl T. (Carl Thomas), 1905-20001
- Derwinski, Edward J. (Edward Joseph), 1926-20121
- Devall, Guy Bossini1
- Dirksen, Everett McKinley208
- Doar, John, 1921-20141
- Dodd, Chris1
- Dodd, Thomas J. (Thomas Joseph), 1907-19712
- Dole, Robert J., 1923-20214
- Donecker, Eleanor1
- Donohue, Harold D.1
- Dorais, James2
- Douglas, Paul H. (Paul Howard), 1892-19764
- Doyle, Vincent A., 1970-2
