Seneca County Genealogical Society - Provides organization information, links to resources, and genealogical information about Tiffin and surrounding area. www.senecasearchers.org
Seneca County OHGenExchange - Genealogical data exchange where visitors and researchers alike can go to find specific persons, and exchange specific data with one another. www.genexchange.org/county.cfm?State=oh&County=seneca
