Collection
- Louis de la Parte, Jr. papers, 1970-1991, Date acquired: 00/00/19921
- Loy Glenn Westfall Cigar Industry Research collection, 1860-1982, Date acquired: 00/00/20151
- Lucy and Michael O'Brien papers, 1920-1985, Date acquired: 00/00/19621
- Lynette Thompson Academic Regalia, 1936-1994, Date acquired: 01/23/20081
- Macauley, George W., Papers, 1944-1991, Date acquired: 00/00/20031
- Mack McElderry Papers, 1963-2004, Date acquired: 10/22/20101
- Mana-Zucca Collection, 1912-19891
- Manuel Garcia papers, 1960-19751
- Map Collection, circa 1600s - present, bulk 1920-19801
- Marching Chiefs Digital Records, bulk 1957-20071
- Marcia B. Samuels Collection, 1961-19901
- Margaret Fisher papers, 1953-1998, Date acquired: 00/00/2002, bulk 1960-19941
- Margery Ann Tully collection, 1933-2001, Date acquired: 11/07/2013, bulk 1933-19611
- Maria Alexander Callinicos Collection, bulk date unknown1
- Marti Colon cemetery collection, 1887-2000, Date acquired: 12/01/2012, bulk 1887-19901
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Essays & Reports, 1745-19831
- Marvin and Sybil Weiner Spirit of America Collection Pamphlets -- Miscellaneous, 1755-19901
- Mary Lou Norwood Collection, 1941-20071
- Mary Monroe Theatre Collection, 1973-2016, bulk 1973-19761
- Mary Pickens Talley Morgan Collection, 1955-2004, Date acquired: 09/11/2010, bulk 1955-19561