- J. A. Burke, Jr., Collection, 1936/19471
- J. Ambler Johnston Papers, 1901/197414
- J. Clark Easton, Soldier, World War I Letters, Diaries, and Other Material, 1917/1963, bulk 1917/19191
- J. D. Eggleston Papers, 1750/195217
- J. Davitt McAteer Papers regarding Mining Safety, 1860/2013, bulk 1970/201044
- J. Henry McCoy Papers, 1918/19762
- J. Hoge Tyler Diary, 1846/2009, bulk 1846/19251
- J. Hoge Tyler Family Collection, 1802/195628
- J. Howard Miller papers, 1891/194615
- J. Keller Reid Papers, 1864/19401
- J. Kenneth Graham Collection, 1934/1986, bulk 1975/19851
- J. Luther Kibler Papers, 1908/194411
- J. Luther Kibler Scrapbooks, 1920/194016
- J. Montgomery Curtis, Journalist, Papers, 1891/19923
- J. Ogden Murray Scrapbook, 1901/19491