- Smith, J. A.6
- Staggers, Harley O. (Harley Orrin), 1951-2
- Staggers, Harley O., 1907-19914
- Standard Oil Company5
- Stefansson, Vilhjalmur, 1879-19621
- Stevens, Ted3
- Stimson, Henry L. (Henry Lewis), 1867-19501
- Stubblefield, D. W. (Daniel W.)3
- Thurmond, Strom, 1902-20031
- Tonkawa Nation1
- Truman, Harry S., 1884-19724
- Udall, Morris K.7
- Udall, Stewart L.3
- United States, National Park Service6
- United States. Army. Corps of Engineers.8
- United States. Bureau of Land Management5
- United States. Bureau of Mines8
- United States. Bureau of Mines. Metallurgical Division4
- United States. Congress. House. Committee on Interior and Insular Affairs11
- United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Energy and the Environment1
