In 1938, the Indiana County Historical & Genealogical Society was founded as a private membership organization. The society's purpose is to collect and preserve materials illustrative to Indiana County, its families, businesses, organizations, etc. The Society maintains a large genealogical research library and is open Tuesday through Saturday.

In its earliest days the society met in homes, later moving to the janitor's office in the Indiana Free Library and then to the Wilson Hall on the IUP campus. As its growth continued, the society moved to Memorial Hall, now known as The Clark House, a 19th Century Victorian mansion. In June 1992, the society purchased the Silas M. Clark House from the Indiana County Commissioners. The building was placed on the National Register of Historic Places in 1978.

In 1993, the society completed a feasibility study on the use of the Clark House and the adjacent Pennsylvania National Guard Armory as its permanent home. Our intentions are to utilize the armory building to house a museum, including space to honor Indiana County veterans, and to enlarge our research library and offices.