- Allen Family Papers2
- Ancella Bickley, Historian, Research Papers regarding African-Americans4
- Anthony Ware, Miscellaneous Papers1
- Ashcraft Family Genealogy1
- Aurora, Preston County Papers1
- Boots (Steiffel) and Peterson (Biedert) Families Genealogies1
- Boyers Morgan Clark, Compiler, Genealogy Records1
- Bradford Laidley Papers1
- Brooks F. McCabe, Collector, Papers1
- Brown Family Papers, Photographs and Maps1
- Byer Family Genealogy1
- Charles Shetler, Curator and Historian, Papers1
- Churches of Somerset County, Pennsylvania, Records1
- Currency Collection1
- Davis-Meranda Family of Clark County, Ohio, Genealogy1