Hi Nathaniel,
I don't have a John Eatwell in my tree. The furthest back I can go is to Thomas Eatwell who married Martha Phillimer in Inkpen, Berks in 1769. They had at least 3 sons, including Michael who married Ann at Hamstead Marshall in 1792. Michael and Ann raised their family of 8 children in Inkpen, Berks. After that the surname changed to Etwell and George, (son of M and A) my g.g.grandfather moved to Ashmansworth.