I have letters ...Uncle William Davey died 1856 worked Consol Mines. I believe son of John Davey/unknown who was son of John Davey/Mary Oppie b ca 1756 d 1838 possibly in America. Had children Mary, Elizabeth m Henry Hamlin, James (?) had daughter Elizabeth m Andrew Clemo, John m Mary Armstrong 1811. I need info on children of John b 1756.