John's wife Isabella Bowen and their son George are both buried in the Helen Furnace Cemetery in Clarion County, PA. George's wife Rebecca is also buried there along with some of their children. There does not appear to be others whose birth dates are close enough to George to be siblings. There is a list of those buried in the Helen Furnace Cemetery at http://www.pa-roots.com/highland/helenfurnacea.html Where did you find that John was born in 1784?