Names
- Pawnee Nation of Oklahoma3
- Pinch, John W.1
- Ponca Nation1
- Potawatomi Tribe4
- Randolph, Jennings, 1902-19982
- Reagan, Ronald1
- Rickard, W. L.1
- Rockefeller, John D., IV (John Davison), 1937-3
- Roosevelt, Franklin D. (Franklin Delano), 1882-19452
- Sabas, Jennifer2
- Saltonstall, Leverett, 1892-19791
- Santini, Jim, 1937-20151
- Schallis, Alvin1
- Schlesinger, James R.1
- Seiberling, John F.1
- Seminole Nation1
- Seminole Nation of Oklahoma3
- Seneca-Seneca-Cayuga Nation of Oklahoma1
- Shawnee Tribe5
- Siciliano, Rocco C.1
