- Robinson, Andrew Rose, 1845-1924, author7
- Robinson, Samuel, 1783-18267
- Rood, Ogden N. (Ogden Nicholas), 1831-1902, author7
- Roosa, D. B. St. John (Daniel Bennett St. John), 1838-1908, author7
- Roygardner, Lauren, author7
- Ruddock, E. H. (Edward Harris), 1822-18757
- Rueff, Jakob, ca.1500-1558, Author7
- Rusby, Henry Hurd, 1855-19407
- Sager, Xavier, 1870-1930, artist7
- Saint-Pierre, Bernardin de, 1737-18147
- Scherer, Maya, author7
- Schieferdecker, Chr. Charles.7
- Seaman, Valentine, 1770-18177
- Seiler, Louise W., author7
- Shattuck, Frederick Cheever, 1847-1929, author7
- Shelley, Walter B. (Walter Brown), 1917-2009, author7
- Shoemaker, John V. (John Veitch), 1852-19107
- Shufeldt, Robert W. (Robert Wilson), 1850-19347
- Simons, Thomas Y. (Thomas Young), 1797-18577
- Simpson, James Young, 1811-18707