Dear reserachers, I must add another element. O'Gorman also says that Jacob's son John died in 1812 in VA. Thus if we infer that the John who was deceased in 1782 (heir in law to William) was William's brother, neither George or Jacob can be William's father. Perhaps the John in Tennessee is some other relation to William. I get more confused as I dig into this. The Crupper name is definitely a lead, but to whom? Paul Bardell