My father was Jim Dunbar Thompson, his father was Samual Thompson, his father Andrew Thompson, his father James Dunbar Thompson II, his father James Dunbar Thompson married Catherine Alderman. That's as far back as I go. I am looking for information on him. He is buried in Beaver Center PA and was born in the 1790's. They also lived in Conneaut Ohio. Please let me know if you have any other information.