I have hit a dead end with the birth of my great great grandfather John Dalton. He died in 1831 in Croydon and his age was given as 57. That would have made his birth year about 1774. I have found his marriage to an Anne Brown at St. Bride Fleet Street by Banns. There is no useful information in the banns. According to a bit of family lore he "was of London". His will mentions no siblings. On the 1811 census for Croydon there is only one other Dalton listed and I have traced him both up and down and found that a living descendant of this second Dalton is not a genetic match for me, thus they were not related. There was a birth of a John Dalton at Kingston upon Thames in the correct time but he apparently dies within the year of his birth. Bill Dalton