Piedmont is architecturally significant because it is one of the noblest specimens of Georgian design found in West Virginia. It is worthy of historic mention for several reasons. It's most ancient portion was built in 1735 by Robert Worthington. His son, Robert Worthington Jr, was instrumental in erecting the nearby church known both as Norborne Parish and St George's Chapel. In 1786 Dr John Briscoe formally bought Piedmont but had lived there for some time. The present structure was built around 1780. In 1806 Dr Briscoe's heirs added the scenic French wallpaper we see today. The location which Robert Worthington chose is certainly an ideal setting for Piedmont. It lies on a tree-shaded knoll by the banks of a crystal clear stream and, as in the 18th Century, is a pleasant sight for all visitors. Worthington named the home Quarry Banks-New Style after his home Quarry Banks in England. He was a devout Quaker, but his son Robert Worthington, Jr, was just as devout an Episcopalian and was responsible for the construction of the Norborne Parish. In 1760, Robert Worthington Jr, married Margaret Edwards and the two lived at Piedmont until 1770. After their deaths, their son Thomas chose the Revolutionary soldier and Indian fighter, William Darke, as his guardian. Several years later Thomas worked for Ohio statehood and became her sixth governor. - NRHP, 30th May 1973