- L. Henry Smith Family Papers, 1823/1878, bulk 1850/18741
- L. J. Bell Notebook, 1840/18602
- Laine family papers, 1772/19613
- Lambert-Sheetz Family Papers, 1818/19074
- Land Deeds and Agreements, 1832/18701
- Land Grants, 1749/19851
- Land Papers Miscellaneous, 1803/19331
- Land Records of the MVLA, 1858/20061
- Land Surveys, 1815/19431
- Lantz Family Papers, 1814/19217
- Larry Jones, Collector, Postcards, Photographs, and Other Material, 1785/1993, bulk 1897/19931
- Latane Family Papers
1650-189811
- Latin American Map Collection, 1711/18732
- Launcelot M. Blackford Papers2
- Laura A. Wright friendship album, 1830/18601