- John Mason Diary, 1694/17022
- John Smith Mezzotint Collection, 1677/17521
- John W. Warner papers, 1967/2009, bulk 1967/20081
- John Womack Wright Collection of Maps, 1675/19182
- King William III and Queen Mary II Papers, 1689/17103
- Latane Family Papers
1650-18982
- Latin Exercise Book, 1672/17212
- Lee Nicholson Papers, 1827/19385
- Lynch Family History, 1600/19401
- Maben Jones Papers1
- Manuscripts - People and Family Names, 1621/1949, bulk 18001
- Manuscripts Artifact Collection, 1800/20101
- Map Collection, 1629/19911
- Margaret Forbes Brand, Compiler, Genealogies, 1500/19651
- Marriage Settlement of the Earl and Countess of Orkney, 16952