Collection
- John L. Ducker Collection, 1863-20071
- John L. Haynes collection, 1945-2007, Date acquired: 05/21/2007, bulk 2003-20071
- John L. McQuigg collection, 1942-1945, Date acquired: 2019-08-06, Date accessioned: 2019-11-061
- John MacKay Shaw Collection, 1737-20071
- John R. Long papers, 1939-1992, Date acquired: 05/31/20001
- John T. Dizer papers, 1853-2007, Date acquired: 00/00/20071
- Johnson Wood papers, 1943-1999, Date acquired: 09/20/2001, bulk 1943-19471
- Joil (Saul) Alpern transcript, 1940-2009, Date acquired: 02/27/20091
- Jonas and Edna Kamlet / Kamlet Laboratories records, 1913-1989, Date acquired: 00/00/20061
- Jose M. Colon Collection, 1945-20101
- Joseph F. Dunn collection, 1943-1999, Date accessioned: 2011-12-061
- Joseph G. Moretti collection, 1941-2000, Date acquired: 2000-03-201
- Joseph Jennings transcript, 1922-2008, Date acquired: 12/07/2001, bulk 1941-19451
- Joseph L. Cittadini collection, 1943-2005, Date acquired: 10/22/2004, bulk 19441
- Joseph Tobias Papers, 1955-1960, 1990-2005, Date acquired: 02/13/2017, bulk 1955-19601
- Joseph and Mary Velezdy Papers, 1947-20001
- José Luis Avellanal collection, 1907-19811
- Juan Martinez Collection, bulk 1955-20131
- Juanita Pauline Marotta Collection, 1943-2006, Date accessioned: 2020-04-031
- Judge Mattie Belle Davis Collection, 1942-19941