Sue:
Thanks for the response and information from the Maughold parish register. I'm gratfeul to have the IGI baptismal listings for the children confirmed. My interest comes from Ann Kermeen, dau of John and Isabel whose baptism is not recorded but who is mentioned in her father's will. Ann married John Costean 1774 at Maughold.

Unfortunately I have not been able to track down Tom Kermen either.