- L. C. Angle, Jr., Collection, 1860/20013
- L. Claire Kincannon theatre collection, 1941/201511
- L. J. Wolfgram Letters to Hazel Tavares Letters, 1943/19453
- L. S. Rhodes & Sons Papers, 1886/19231
- L.J. Nettles World War II Historical Newspaper Collection, 1941/194628
- Labor History Collection of Publications and Artifacts, 1937/19597
- Ladies of the Maccabees, Progressive Hive No. 8, Morgantown, Papers, 1907/19461
- Ladwig Family Papers, 1870/195911
- Lady Nancy Astor Papers, 1927/19562
- Laila W. Pearsall Personal Papers (SC-10)1
- Laine family papers, 1772/19614
- Land Grants, 1749/19851
- Land Records of the MVLA, 1858/20064
- Landmarks Society of Alexandria, Virginia Collection (MS079), 1934/19761
- Lane Carlson papers, 1937/197230