- J. D. Eggleston Papers, 1750/19523
- J. Davitt McAteer Papers regarding Mining Safety, 1860/2013, bulk 1970/201012
- J. Edgar Boyers Commissions as Colonel and Brigadier General, 1859/19121
- J. G. H. Miller Ledger, 1856/1884, bulk 1872/18841
- J. G. Happersith Army Letter, 18712
- J. Hoge Tyler Diary, 1846/2009, bulk 1846/19252
- J. Hoge Tyler Family Collection, 1802/195652
- J. Keller Reid Papers, 1864/19401
- J. M. Shugar and A. W. Vaisey papers, 1832/191415
- J. M. Tise Ledger and Tise Family Receipts, 1798/19372
- J. Paul Hudson Papers, 1930/19981
- J. Robert Rice, Collector, Civil War Diary of Joshua Rice, 1857/2018, bulk 1857/18811
- J. T. Price Civil War Collection, 1862/19681
- J. T. Witt and Son Ledger Books, 1847/18741
- J. W. Crist & Company Records, 1866/18772