Marysville Public Library
https://marysvillelib.org/

Plain City Historical Society
https://www.plaincityhistoricalsociety.org/

Plain City Public Library
https://www.plaincitylib.org/

Richwood-North Union Public Library
https://www.richwoodlibrary.org/

Union County Cemetery Photographs
http://www.genealogybug.net/union_cems/unionindex.htm

Union County Genealogical Society
https://www.uccogs.org/

Union County Records Center & Archives
https://www.unioncountyohio.gov/archivist-home