- S. Cole Bradley Papers2
- S. F. (Bill) Royall, Jr. papers2
- Saint Andrew's Society collection10
- Saleem A. Shah papers71
- Sallie Bennett Papers regarding World War I Flying Ace Louis Bennett, Jr.2
- Sally H. Thomas papers17
- Sally Jane Brown, Artist, Collection3
- Sally Waldner Bould Stan Architectural Collection10
- Sam Huff Artifacts, Scrapbooks, and Other Material1
- Sam McColloch, Compiler, Three Manuscripts regarding Family History, Artists, and Fighter Pilot1
- Sam Sadler papers16
- Sam di Bonaventura papers230
- Samuel F. Harsh Family, Genealogy, Photographs, and Artifacts1
- Samuel Herrick Papers3
- Samuel Leyens Switzer Papers2