- Sanger, Eugene F.1
- Sanitary Council of the Mississippi Valley.1
- Sano, Tsuneto, artist1
- Santander, Carlos, active 18791
- Santiago, Manoel Lopes.1
- Santibañez, Abraham E.1
- Santos Fernández, Juan, 1847-1922, author3
- Santos Vidalon, José.1
- Santos, Carolino Francisco de Lima.1
- Santos, Luiz Antonio da Silva.1
- Saraiva, Manoel Joaquim.2
- Sargent, Epes, 1813-18801
- Satchwell, S. S. (Solomon Sampson), 1821-1892, author1
- Satterlee, F. Le Roy (Francis Le Roy), 1847-1917, author1
- Satterthwaite, Thomas E. (Thomas Edward), 1843-1934, author3
- Sawyer, Edward Warren, 1848-1897, author1
- Sayre, Lewis A. (Lewis Albert), 1820-19001
- Sayre, Lewis A. (Lewis Albert), 1820-1900 author1
- Sayre, Lewis A. (Lewis Albert), 1820-1900, author5
- Schaffner, José Guillermo.1