- Renshawe, John H.3
- Risser, Michele3
- Robert Sayer and John Bennett (Firm)3
- Sampson, Murdock & Co.3
- Sartain, Samuel, 1830-1906, ruler3
- Sällskapet för Finlands geografi, Helsingfors3
- Scarborough Company3
- Schmidt, D. L. (Dwight L.)3
- Sealing, H. E.3
- Setterholm, Dale R3
- Siebert, Selmar, printer3
- Sloan, Robert E. (Robert Evan), 1929-3
- Sociedad Geogräfica de Lima3
- Staples, Chas. F.3
- Stone, J. E. (John Elmer), 1931-3
- Stoner, J. J.3
- Strum, G. P. (Gustave P.)3
- Sublette, G.W.3
- Suomen Maantieteellinen Seura3
- Ten Thousand Lakes of Minnesota Association3