Hi Mary
Thanks for your reply. Yes, I have seen the entries on Brian Lawson's site. The spelling just seems to vary, so I always check both ways. His brother's MI is spelled Callin, and his sister's marriage certificate is also spelled Callin, (but Callan on Brian's birth index). I also found one family member as Colin. The George Edwin Callin in Australia is definitely my ancestor as the death index names his parents correctly. He may not have married , of course, but the name Robert George Callin as a possible son is promising, as his sister also had children called Robert and George.
Thanks for your input, I'm still looking for a possible link between my Callins and the Patrick Callins!
Susan