- Historic manuscript collection, 1601/19331
- Institute for the History of Technology and Industrial Archaeology Records, 1875/2005, bulk 1980/20056
- Irene McKinney, Poet, Papers, 1950/20114
- J. Davitt McAteer Papers regarding Mining Safety, 1860/2013, bulk 1970/201015
- J.J. Rutledge Technical Writings on Coal Mining, 1920/19392
- James M. Guiher, Jr., Papers, 1835/2014, bulk 1927/19761
- Jefferson Society records, 1825/20186
- John E. Reed Plant Encyclopedic Scrapbooks, 1910/195918
- John E. Winter Papers, 1906/19588
- John Jacob Cornwell (1867-1953), Governor, Papers and Records, 1843/19531
- John Wade Kidwell Family Papers, 1920/2013, bulk 1940/19955
- Justus Collins (1857-1934) Papers, 1887/19621
- Katherine M. Hunter, Compiler, Local Histories and Genealogies, 1948/19748
- Katherine Williams, Collector, Williams Family Papers, 1840/20051
- Lyric Theatre Collection, 1922/2006, bulk 1922/19791