Collection
- ISCA: The International Society of Copier Artists Quarterlies, 1982-20031
- Iain Lawrence collection, 1970-20201
- Interim President, Richard Pegnetter, 20071
- International Programs Records, 1974–2005 (with some undated items)1
- Intown Business Women's Club Records, 1981-2003, Date acquired: 08/00/20061
- Irene Riley Hart Collection, Circa 1978-20051
- Isidoro and Aida Vega collection, 1930-01-01-2003-01-011
- Ivy Bigbee collection, 1995-2002, Date acquired: 00/00/20021
- J. Paul Hartman Slide Collection, 1605-2006, bulk 1905-19931
- J.L. Reed and Son photograph collection, 1938-20131
- Jack Appel transcript, 1943-1945, Date acquired: 06/10/20031
- Jack B. Newman collection, 1943-2002, Date acquired: 09/17/2002, bulk 19441
- 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