Historians, Miscellaneous: Biographies
- Ruth Patrick
- Sadie Tanner Mossell Alexander
- Salomon Maimon
- School buildings
- Sherwood F. Rowland
- Shirley Graham Du Bois
- Snail darter
- St. Clair Drake
- Stanley Crouch
- Stephen Alfred Forbes
- Suzanne de Passe
- Sylvia Browne
- Ugo Spirito
- Ulysses Dove
- Unita Blackwell
- Wallace Henry Thurman
- Walter Rodney
- Wilhelm Ostwald
- William Henry Hastie
- William Heytesbury