i have been researching the prestons of bradford and i have traced my husbands great grandma back to john preston 1818, his son alberts son william actually married ann elizabeth boocock and andrew married mary alice mccargo in rochdale and their daughter is my husbands great grandma matilda. i was puzzling about william so i will ask her and she may know of some story or other although it is a long way back. i know ,most of the preston family stayed around bradford so she may not know much about them. please email me if i can be any help, michelle