I do not know how the Robert Fulton got started but your information is basically correct. All of the legal documents and the U.S. Census list the name as Fulton F. Eckels. He and his wife are buried in St. Marys, West Virginia. Remnants of his family now live in Connecticut and Virginia. He was born in Allegheny County, Pennsylvania. He is my gggrandfather through his son John Shepherd Eckels. Sarah McMains Eckels died May 2, 1864 at the age of 41.