I am descended from an Isaac Thornsberry, son of John, probably the ones you mentioned in your posting. I can't be sure without more information. My great-grandfather Henry was the son of Isaac. Henry's son told me in 1995 that his father Henry came from Elliot County Kentucky with his father when Henry was just about five years old. I'm very interested in this Walter Thornsberry, because research by a paid professional genealogist says that John Thornsberry was the son of Edward Thornsberry who was the son of Walter Thornsberry. Information on this Walter has been hard to find, as he was a Quaker, and the Quaker records where he lived were lost. This Walter was said to be the son of a Walter himself. There was also a Walter Thornsberry as a single man in Chester Co. Penn. back when Edward lived there.You may find information on these Thornsberry's, they were Quakers, in the Thornsborough Family Genealogy library in Thornsborough Pennsylvania. I've longed to go there myself someday.