- Gregory A. Prince Mormon Studies Collection, 1813/20201
- Grigsby-Galt Papers, 1736/1982, bulk 1840/19301
- Hill Family Genealogy, 1700/1999, bulk 1980/199910
- Historic ephemera collection, 1796/19861
- Historical Maps Collection, 1500/20232
- Isaiah Dunster Notebook, 1744/17481
- J. Paul Hudson Papers, 1930/19983
- Jack Eric Morpurgo Papers, 1937/2000, bulk 1950/19701
- Jack Sandy Anderson, Compiler, Local History Articles and Genealogy Papers, 1600/2011, bulk 2000/20081
- James Edwin Green, Photographer, Glass Plate Negatives and Other Material, 1900/1925, bulk 1900/19181
- James M. Guiher, Jr., Papers, 1835/2014, bulk 1927/19761
- Jan Karon papers, 1918/2018, bulk 1964/20181
- Jerdone Family papers, 1753/18903
- Jeremiah W. Graves Collection, 1836/18691
- Jim Comstock, Newspaper Editor and Collector, Papers, 1650/2003, bulk 1850/19953