- Sampson, Murdock & Co.3
- Sällskapet för Finlands geografi, Helsingfors3
- Scarborough Company3
- Schmidt, D. L. (Dwight L.)3
- Sealing, H. E.3
- Setterholm, Dale R3
- Sloan, Robert E. (Robert Evan), 1929-3
- Sociedad Geogräfica de Lima3
- Standard Map Company3
- Staples, Chas. F.3
- Stone, J. E. (John Elmer), 1931-3
- Sublette, G.W.3
- Suomen Maantieteellinen Seura3
- Ten Thousand Lakes of Minnesota Association3
- Tirion, Isaak, -17693
- Torres, Juan M3
- United States. Army. Quartermaster Corps3
- United States. Bureau of Public Roads. Geological Survey (U.S.)3
- United States. Hydrographic Office3
- Van Hise, Charles Richard, 1857-19183