Collection
- J.L. Reed and Son photograph collection, 1938-20131
- Jack Appel transcript, 1943-1945, Date acquired: 06/10/20031
- Jack Crothers Collection, 1962-20041
- Jackie Voelkl manuscript, 1942-2006, Date acquired: 03/27/2006, bulk 1942-19461
- Jacksonville Consolidation Newspaper Collection, 1968-20081
- Jacksonville Mayor's Commission on the Status of Women Collection, 1986-20091
- Jacksonville Port Authority (JAXPORT) Collection, 1989-20121
- Jacksonville Symphony Orchestra (Jacksonville, Florida) Collection, 1961-20121
- Jacksonville, Florida, Historical Newspapers Collection, 1890-20121
- Jacqueline Woodson collection, 2001-2003, 20081
- Jaffe Family Archives, 1881-2012, bulk 1940-20121
- James E. Shepherd Jr. Papers, 1965-20151
- James Elliott Collection, 1960-20101
- James J. Harkins collection, 1970-2016, Date acquired: 00/00/20161
- James Noble Harrell papers, 2000-20071
- James T. Griffiths Papers, 1914-2006, bulk 1959-20021
- James Thomas transcript, 1943-1945, November 19, 20031
- James and Joanna Tokley papers, 1920-2010, 2011-101
- Jan K. Platt papers, 1974-2004, Date acquired: 00/00/19961
- Jan Reiner research file, bulk 1909-20101