- S. C. Roddy Civil War Memoir, 19091
- S. Michael Polakoff Papers
1921-2006, Undated15
- S. Robbins and E. N. Gates records of accounts, 1839/18421
- S. S. Van Dine Photograph Collection, 1900-193912
- S. V. Bosserman Letter, 18631
- S. Vernon McCasland papers, 1928/19548
- Sadie Heath Cabaniss Letters, 1900/19043
- Sadler and Whitehead, Architects, Papers, 1992-20012
- Saffa 58 Architectural Drawings, 19582
- Sage Futrell papers, 20231
- Saleem A. Shah papers, 1952/19932
- Sallie Bennett Papers regarding World War I Flying Ace Louis Bennett, Jr., 1873/2009, bulk 1904/19264
- Sallie Key Meyers account of Zuni culture, 19301
- Sally Jane Brown, Artist, Collection, 1959/2023, bulk 2013/20202
- Sally Waldner Bould Stan Architectural Collection, 1940/199755