- S. B. Barham Account Book, 1896/19151
- S. B. Barham Diaries, 1903/19151
- S. B. Barham Papers, 1904/19102
- S. Corder Musgrave Papers, 1891/19661
- S. F. (Bill) Royall, Jr. papers, 1883/19791
- S. George Company Records, 1900/19751
- S. H. Knick Collection, 1904/19062
- S. Maria Elliott Family Collection, 1826/19421
- S. P. Hite Company Daybook, 1905/19091
- S.A. Thompson Family Papers, 1899/19304
- Sabra Lucinda (Miner) Sturgiss Papers, 1838/19091
- Saint Andrew's Society of Washington, D.C. records, 1861/19953
- Salem School District, Board of Education, Record Books, 1888/19201
- Sallie Bennett Papers regarding World War I Flying Ace Louis Bennett, Jr., 1873/2009, bulk 1904/19266
- Salt Sulphur Springs Records, 1819/19321