- J. Ambler Johnston Papers, 1901/19743
- J. Clark Easton, Soldier, World War I Letters, Diaries, and Other Material, 1917/1963, bulk 1917/19191
- J. D. Eggleston Papers, 1750/19526
- J. Davitt McAteer Papers regarding Mining Safety, 1860/2013, bulk 1970/201040
- J. Henry McCoy Papers, 1918/19762
- J. Hoge Tyler Diary, 1846/2009, bulk 1846/19251
- J. Hoge Tyler Family Collection, 1802/195644
- J. Howard Miller papers, 1891/19462
- J. J. Fahrney Papers, 1886/19363
- J. Keller Reid Papers, 1864/19401
- J. Luther Kibler Papers, 1908/194410
- J. Luther Kibler Scrapbooks, 1920/194016
- J. M. Tise Ledger and Tise Family Receipts, 1798/19372
- J. Montgomery Curtis, Journalist, Papers, 1891/19923
- J. Ogden Murray Scrapbook, 1901/19491