William Fogg married Mary Holden in Bolton, 1771. They have two daughters christened there, Ann 1773 and Mary 1775 then seem to disappear. Seemingly out of nowhere, a William and Mary Fogg appear and christen children in Liverpool, Nancy 1776, James 1779, Fanny 1781 and Samuel 1785. I`m wondering, if this is the same couple. Can anyone help ? Lesley