- Sims, Anne Hitchcock, 1875-1960--Correspondence1
- Singer, Joel1
- Slaton, John M. 1
- Smith, Lillian Eugenia, 1897-1966. Killers of the dream1
- Smith, William (-1949)1
- Smith, William M. (William Manning)1
- Smithline, Jeffrey S., 1974-1
- Sperry, Catharine Dusenbury, 1825-18961
- Staton, Mary1
- Stephens, Alexander H. (Alexander Hamilton), 1812-18831
- Stephens, Alexander, 1757-18211
- Stern, Marian Frank, 1886-19481
- Sutherland, Howard, 1865-1950--Correspondence1
- Swann, Pat1
- Taft, William H. (William Howard), 1857-19301
- Taft, William H. (William Howard), 1857-1930--Death and burial1
- Terkel, Studs, 1912-20081
- Thanet, Octave, 1850-1934--Correspondence1
- Thompson, Jerry, 1940-1
- Thompson, Jerry, 1940- 1