Send a message to the person who requested a photo of the grave monument of John Hartley with the following comment:
Probably my 4 x great-grandfather!If this is of help: The Elizabeth Potter buried in grave number 40655 at St. Mary, Tadcaster, was the late wife of Sir Thomas Potter (one of John Potter's sons) . She was buried there on Thursday 15th February 1810 - source: Richard Potter's (1778-1842) papers deposited at the London School of Economics Coll. Misc. 0146.