- Oppler, Alfred C. (Alfred Christian), 1893-1982.1
- Smith, Thomas, 1513-1577.1
- Soviet Union.1
- Timasheff, Nicholas S. (Nicholas Sergeyevitch), 1886-1970.1
- Ulbricht, Walter, 1893-1973.1
- United States.1
- Webster, Pelatiah, 1726-1795.1
- Williams, Edwin, 1797-1854.1