Names
- Cheyenne and Cheyenne and Arapaho Tribess1
- Chicago Development Company1
- Chickasaw Nation100
- Chilocco Indian Agricultural School (Okla.)1
- Chilocco Nation1
- Choctaw Nation of Oklahoma103
- Chuck, Robert T.1
- Clancy, Ed5
- Clark, Charles P.1
- Clinton, Bill, 1946-5
- Clinton, Hillary Rodham3
- Comanche Nation1
- Consolidation Coal Company1
- Coons, A. T.1
- Cowper, Steve1
- Creek Nation2
- Davies, Ralph K.1
- Dean, R. S. (Ralph S.)5
- Delaware Tribe of Indians1
- Dirksen, Everett McKinley1
