I am descended from Rev William Riggs, 1749 - 1833, and Mary Dodson/Dowdon. They are several children in Washington County, PA. James and his brother, Thomas Riggs, moved to Moundsville, Marshell County, WV, as did a sister Aberilla (Alvilar) Riggs, who marred John Franklin, and (2) John Alexander Armstrong. Thomas moved on to Ohio County, WV. this might be of some help to a few of you. Steade Craigo