- George K. Campbell, Civil War Journal1
- George Kossuth, Photographer, Photographs1
- Gibson Lamb Cranmer Papers regarding Statehood and Other Material1
- Goshorn Family Papers1
- H.E. Matheny, Collector and Compiler, Civil War Correspondence and Other Material1
- Henri Jean Mugler Diary and Memoir1
- Hook, Schrader and Company Account Books of a Horse-Drawn Carriage Company1
- J. R. Caldwell, Cow Herd Books1
- J. S. Algeo, An Unpublished History of the Hazel-Atlas Glass Company, Typed Document1
- J.B. Ford Correspondence1
- J.B. Ford Legal Papers1
- Jacob Minehart Ledger1
- Jessie Campbell Nave Diaries1
- Jim Comstock, Newspaper Editor and Collector, Papers1
- John Frissell Papers1