Collection
- Marvin-Green sheet music collection, 1880-19801
- Mary Mendenhall Wood Collection, 1901-1967, bulk 1964-19671
- May Ryburn Papers, 1880-2003, bulk 1925-20031
- McGill Family Papers, 1836-1962, Date acquired: 10/29/19821
- Memoranda on Tavares, 1875-1925, Date acquired: 09/01/19631
- Michael A. Spencer Collection on Henry Nehrling, 1894-19971
- Michael A. Spencer Collection on Theodore Mead, 1887-19391
- Michael E. Krauss collection, 1882-1989, Date acquired: 00/00/2018, bulk 1958-19891
- Miriam and Roman Waldman Music Collection, 1900-19401
- Miscellaneous Prints, 1827-19181
- Monticello Genealogy Records from Family Bibles, 1758-19681
- Moody family papers, 1886-1997, Date acquired: 12/00/19971
- Myrtle Bailey Collection, 1906-19431
- Nathan Lupu Collection, 1906-20001
- Neidlinger occasion card collection, 1900-1926, Date acquired: 06/00/19891
- Neulander Magazine Collection, 1882-2002, Date acquired: 12/11/1968, bulk 1920-1929; 1950-19791
- Niara Sudarkasa Collection, 1934-20061
- Nita K. Pyburn Papers, 1822-19601
- Noel Wisdom Collection of Chromolithographic Prints, 1860-19101
- Non-Florida photograph collection, 1890-19301