Collection
- Judith and Warren Kaplan Collection, Women's and Gender Studies, 1792-2016, bulk 1900-20001
- Justice Glenn Terrell Papers, 1775-1985, Date acquired: 12/00/1992, bulk 1920-19701
- Karen Howey Schmidt Ephemera collection, 1949-1959, Date acquired: 00/00/00001
- Karst studies collection, 1946-19891
- Katherine Moore Morse Collection, 1891 - 2007, bulk 1943 - 19471
- Katherine Wallick Ikebana Collection, 1955-1984, Date acquired: 04/26/00061
- Kathleen Cunningham research collection on the Assassination of President John F. Kennedy, 1963-19991
- Kathleen Hardee Arsenault literature research collection, 1877-19981
- Kathleen Raine collection, 1932-1998, Date acquired: 12/13/19971
- Ken van Assenderp Collection, 1963-20101
- Kennedy Collection, 1914-20111
- Kennedy Drawbridge historical documentation survey records, 1916-1993, bulk 19931
- Kenneth A. Skoog papers, 1942-1945, Date acquired: 07/25/2005, Date accessioned: 2020-06-02, bulk 19431
- Kenneth D. Kelly papers, 1943-1999, Date acquired: 06/13/2000, bulk 1943-19451
- Knight and Wall Hardware Company records, 1884-1992, Date acquired: 00/00/19821
- Konglomerati Press papers, 1971-1987, Date acquired: 00/00/19901
- Krewe of the Knights of Sant' Yago, 1973-2013, Date acquired: 04/01/2014, bulk 1973-20131
- L'Unione Italiana records, 1902-19891
- Labor Schools and Conventions, bulk date unknown1
- Latin American ephemeral publications collection, 1861-20091