Collection
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Essays & Reports, 1745-19831
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Foreign Language, 1565-19421
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Letters 1744-1904, 1744-19041
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Miscellaneous, 1755-19901
- Marvin-Green sheet music collection, 1880-19801
- 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
- Minnie L. Gatewood Papers, 1892-19001
- Minutes Book of the Florida Institute, 1856-19051
- 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
- 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
- Nita K. Pyburn Papers, 1822-19601