Hello, I only have a Noah Riggs, born 1793 in Washington County, PA, the son of Rev. William Riggs and Mary Dodson. I do not have all of next two generations of the Riggs descendents. There were apparently several Riggs, descended from Rev. Riggs' children, which moved on to Ohio. Have you tried the following: www.datacruz.com/~bapeterson/dr1888.htm this is an old website; I am not sure that it is still active. Steade