- Pulte, J. H. (Joseph Hippolyt), 1811-18842
- Quintard, C. T. (Charles Todd), 1824-18981
- Ramsay, H. A.2
- Rapou, Aug. (Auguste)2
- Ricord, Ph., 1800-18892
- Robinson, George, 1821-18751
- Rogers, E. C. (Edward Coit)1
- Rothstein, H. (Hugo), 1810-18651
- Semple, Matthew.1
- Sharp, William, 1805-18961
- Shaw, Benjamin S. (Benjamin Shurtleff), 1827-1893, author2
- Sims, J. Marion (James Marion), 1813-18831
- Sociedad de Medicina Montevideana, author.1
- Steiner, Lewis H. (Lewis Henry), 1827-18921
- Stevens, William, 1786-18681
- Stewart, F. Campbell (Ferdinand Campbell), 1815-18991
- Swalm, Levi B.1
- Taylor, Alfred Swaine, 1806-18801
- Taylor, Othniel H. (Othniel Hart), 1803-18691
- Townsend, Howard, 1823-18671