I realize it's been 7 years since you posted your message but I have just begun to research my family's history. I have traced my grandfather (Edward R Dack) to William & Jane also. It went from William/Jane to John Edward to Edward Robert. I have pictures of John Dack and Edward's sister, Matilda but this side of the family is a bit obscure. It looks as if John Dack had 10 children, so there is probably a large group of cousins out there somewhere. Any other info you have would be welcome. Thanks