"The Genealogy of John Werry and Ann Congdon", containing a chapter on the above couple and their descendants, was published in 1984 and updated in 1998. I got a copy from a couple in Blackstock, ON. E-mail me if you want further information.

I believe my ancestor Thomas Hockin was a brother of this John Hockin. Both were born at Boconnoc in the early 1790s and both were coopers. Both have many descendants in Canada.