- Ottawa Tribe1
- Ottawa Tribe of Oklahoma1
- Ponca Nation1
- Ponca Tribe of Nation1
- Potawatomi Tribe1
- Roudebush, Richard L. (Richard Lowell), 1918-19951
- Sasser, James R.1
- Schweiker, Richard S. (Richard Schultz), 1926-20151
- Seneca-Seneca-Cayuga Nation of Oklahoma1
- Sharp, Philip R.1
- Sikes, Robert L. F. (Robert Lee Fulton), 1906-19941
- Slack, John Mark, 1915-19801
- Smith, Neal Edward, 1920-1
- Stennis, John C. (John Cornelius), 1901-19951
- Stevens, Ted1
- Stevenson, Adlai E., III (Adlai Ewing), 1930-1
- Tonkawa Nation1
- Tonkawa Tribe of Nation of Oklahoma1
- Tsongas, Paul1
- United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Defense1
