During the annual meeting of the Historical Society in 1968, the Second National Bank announced the gift to the Society of a one-third interest in the MarfieldBankBuilding at 133-135 West Main Street. Remaining interests were given at periodic intervals. Polly Miller and Johnda Davis were instrumental in establishing a genealogical library which was initially situated in the building just east of the offices of the Chamber of Commerce.
In 1985 the Moore House, located at 304 South Court Street was willed to the Society. The Historical and Genealogical Library located at this site. All written historical documents, photographs and the Pickaway County Probate Court archive were preserved at this location.
Pickaway County Historical Society officially became a chapter of the Ohio Genealogical Society on May 1, 1993. In 2001 the Society acquired all Probate records stored in the attic of the Courthouse. After cleaning, sorting, numbering and filing these items the society received, in 2003, the History Outreach Excellence Award from the Ohio Historical
Society for preservation and promotion of history.
In 2007, after many years of fundraising, the Society purchased the former Circleville Herald building at 210 North Court Street. A complete remodeling of the building resulted in a spacious library with an archive room and audio-visual-meeting room. The new library opened June 12, 2008.
The Library is open Tuesday thru Friday from 1:00 P.M. until 4:00 P.M. and Saturday from 9:00 A.M. until Noon.