A List of Archive Collections in OGS Library
List of Collections in the Lyle H. “Hal” West Archives at the OGS Library, organized by subject.
A List of Yearbooks in OGS Library
African American Research Resources
Cemetery Research Files finding aid
Inventory of the cemetery research files at the OGS Library, containing miscellaneous information compiled on cemeteries across the state, collected from the 1940s-2005.
Century Families of Ohio (CFO)
Ohio Genealogical Society Lineage Society Members through 2024 and their Ancestors
Chronicling America Historic Newspapers
Digitized newspaper pages produced by the National Digital Newspaper Program (NDNP), a partnership between the National Endowment for the Humanities (NEH) and the Library of Congress.
County Directories
A List of the County Directories in the OGS Library Collection
County Histories
Cuyahoga County, Ohio Case File Index Key 1896-1967
Finding Aid and Key to be used with index cards digitized online via FamilySearch
Digital Public Library of America – DPLA
FamilySearch Research Wiki – Ohio
Genealogy Resource Guide to Ohio ancestry, family history, birth records, marriage records, death records, census records, military records, and other information.
Finding Civil War Photographs
First Families of Ohio (FFO)
Ohio Genealogical Society Lineage Society Members through 2025 and their Ancestors
German Resources
Heraldry Resources
Library of Congress Digital Collections
Manuscript Key
List of Collections in the Lyle H. “Hal” West Archives at the OGS Library, organized by subject.
Microfilm Holdings
Military Order of the Daughters and Sons of Ohio (MODSO)
Ohio Genealogical Society Lineage Society Members through 2025 and their Ancestors
Morgan Library of Ohio Imprints, 1796-1850
Includes select pamphlets and imprints from the Samuel D. Isaly Library
Native American Resources
Ohio Chapter of the Society of Mayflower Descendants
List of Society Members who are deceased or whose membership is over 100 years old. Full list of members is available at the library. All Ohio applications are in the OGS Archive.
Ohio GenWeb Project
Free online genealogical and historical information on each of the 88 counties in Ohio. This totally non-commercial website is managed by dedicated volunteers and all information provided is at no cost to the visitor.
Ohio Memory
Free collaborative statewide digital library with content from over 390 cultural heritage institutions representing all 88 of Ohio’s counties.
Ohio Photograph Collection: Cities and Places
Photographs and post cards of cities, towns, special groups/companies, landmarks, buildings, and historical events from across Ohio, 1870s to present
Ohio Photograph Collection: People
Identified photos of Ohio ancestors, 1850s to present