Collection
- Sol and Sadie Malkoff Papers, 1900-19991
- Southwest Florida Regional Planning Council Collection, 1920-20201
- Spanish-American War stereoscopic collection, 1898-1900, Date acquired 07/30/20251
- Spessard Lindsey Holland Papers, 1892-19711
- St. Augustine, Florida Records, 1883-1959, bulk 1930-19401
- St. John's Cemetery Company (Pensacola) Records, 1892-1985, Date acquired: 09/17/19851
- St. Mary's Episcopal Church Collection, 1868-1954, Date acquired: 10/00/19821
- St. Michael's Creole Benevolent Association Records, 1878-1961, Date acquired: 00/00/19941
- Sumter Lowry Currency collection, 1851-1942, bulk 1851-18611
- Susan Bradford Eppes Papers, 1850-19491
- Suzanne Davis Hardee collection of Floridiana monographs, 1885-19991
- Sy Canton Collection, 1884-1975, bulk 1916-19491
- Sybil Weiner Sheet Music Collection, 1895-19661
- Sydney V. Coxetter Agriculture Collection, 1872-1947, bulk 1910-19301
- Tampa Audubon Society Slide collection, 1900-2005, Date acquired: 01/01/2015, bulk 1960-20051
- Test Hyams, 1800-22001
- The Florida Randolphs, 1829-19781
- The Maurice Givens Papers, 1885-1969, Date acquired: 10/00/1974, bulk 1918-19421
- The Thomas and Georgine Mickler Map Collection, 1735-19951
- The Weekly Challenger photograph collection, bulk 1900-20251