- Schieferdecker, Chr. Charles.3
- Segal, Laura M., author3
- Sewall, Thomas, 1786 or 1787-18453
- Shoemaker, John V. (John Veitch), 1852-19103
- Silliman, Benjamin, 1779-18643
- Simons, Thomas Y. (Thomas Young), 1797-18573
- Smart, Charles, 1841-1905, author3
- Smith, Joseph Mather, 1789-18663
- Smith, Southwood, 1788-18613
- Stevens, Alexander H. (Alexander Hodgdon), 1789-18693
- Sunderland, La Roy, 1802-18853
- Teste, Alph. (Alphonse), 1814-3
- Thomas, T. Gaillard (Theodore Gaillard), 1832-1903, author3
- Thomson, John, 1765-18463
- Toner, Joseph M. (Joseph Meredith), 1825-18963
- Trotter, Thomas, 1760-18323
- Underwood, Michael, 1736-18203
- United States Strategic Bombing Survey. Civilian Defense Division, author.3
- United States. Army Service Forces. Service Command, 9th. Service Command Librarian's Office, compiler, issuing body.3
- United States. Army. Department of the Ohio. Medical Director's Office.3