- Baltimore and Ohio Railroad Records, 1853/18641
- Charles Brinkman, Collector, Papers, 1852/19521
- Charles Carpenter (1889-1975) Papers, 1853/18601
- Festus P. Summers (1895-1971), Historian, Papers, 1843/19711
- Harrison Hagans (1796-1867) Papers, 1810/18951
- Harvey W. Harmer (1865-1961) Papers, 1842/19611
- Henri Jean Mugler Diary and Memoir, 1838/18991
- John Bassel (1840-1914) Papers, 1761/19481
- John Bassel (1840-1914) Papers, 1854/19161
- John Jacob Cornwell (1867-1953), Governor, Papers and Records, 1843/19531
- John Thomas McGraw (1856-1920) Papers, 1842/19481
- Parkersburg Town Council Journals, 1826/18741
- Preston Family Papers, 1817/19451
- Siler Family Papers, 1848/19681