Authors: F.
- Sade, marquis de 1740-1814
- Sadler, M. F. (Michael Ferrebee) 1819-1895
- Sáenz de Urraca, J. F. -
- Safford, F. P. -
- Salade, Robert F. 1880-
- Salem, F. W. (Frederick William) -
- Salonen, B. F. 1849-1881
- Salzman, L. F. (Louis Francis) 1878-1971
- Sanborn, Alvan F. (Alvan Francis) 1866-1966
- Sanborn, F. B. (Franklin Benjamin) 1831-1917
- Sánchez, Francisco -
- Sanders, William Francis Lewis 1849-
- Sanford, John F. A. 1806-1857
- Sarmiento, Domingo Faustino 1811-1888
- Saunders, Charles Francis 1859-1941
- Saxby, C. F. Argyll -
- Schabelitz, R. F. (Rudolph Frederick) 1884-
- Schaeffer, Charles Frederick 1807-1879
- Scharff, R. F. (Robert Francis) 1858-1934
- Schauffler, A. F. (Adolphus Frederick) 1845-1919
- Schell, Frank Cresson 1857-1942
- Schell, Frederic B. -
- Scheltema, J. F. (Johann Friedrich ) 1855-1922
- Scheurleer, Daniel François 1855-1927
- Schiefner, Anton 1817-1879
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