- Dana Harmon Papers, 1885/19161
- Daniel Bedinger Lucas Papers, 1812/18241
- Daniel E. Wright Papers, 1903/19732
- David Moser Papers, 1864/19172
- Dayton M. Kohler Papers, 1889/19712
- Devota Pack Manuscript Collection, 1858/19772
- Dickinson Family Papers, 1871/19315
- Dickson Family Papers, 1769/19246
- Dillard-Larkin Family Papers, 1809/195511
- Diploma Collection, 1877/19642
- Doctor V. Jewell Account Books, 1898/19231
- Dorothy H. Bodell Papers, 1850/19964
- Dorothy McCombs Collection,, 1970/19891
- Dr. Thomas' Eclectric Oil Trade Card, 1875/19402
- Earhart Family Papers, 1788/19287