Collection
- Jacksonville, Florida, Historical Newspapers Collection, 1890-20121
- Jaffe Family Archives, 1881-2012, bulk 1940-20121
- James A. Taylor papers, 1886-19001
- James Tillinghast Archer Family Papers, 1843-19691
- James Tillinghast Archer Papers, 1850-1961, Date acquired: 03/20/19681
- Jean Trebbi ABC Book Collection, 1852-20091
- Jessie C. Rohrer collection, 1891-1987, Date acquired: 00/00/19971
- Jewell Family papers, 1870-19721
- Jim Ellis Collection, 1885-19991
- John E. Mathews, Jr. Papers, 1900-19881
- John Forbes journal and letter by Dr. Coker, 1803-1977, Date acquired: 09/12/1977, bulk 1803, 19771
- John H. Parker, 1812 - 1947, Date accessioned: 2019-10-16, Date acquired: 1998-06-181
- John L. Ducker Collection, 1863-20071
- John MacKay Shaw Collection, 1737-20071
- John T. Dizer papers, 1853-2007, Date acquired: 00/00/20071
- John W. Senders Working Collection, 1880-20141
- John William Osterweil Collection of Tampa Cigar Box Labels, 1900-1950, Date acquired: 03/01/19841
- Johnson, Thomas A., Papers, 1800-1945, Date acquired: 10/00/19671
- José Ramón Avellanal collection, 1869-19271
- Judith and Warren Kaplan Collection, Women's and Gender Studies, 1792-2016, bulk 1900-20001