Sorry David , wrong email address , should be
davsue77@yahoo.com.au

Sorry about confusing your grandfather Alexander with his brother john Lewin , Alexander is not on thr IGI . however I believe the rest of line I gave you is correct .

And with another Alexander in the line ( Which is not a manx name ) I lean to Alexander Bruce born circa 1725 in Scotland as your GGGGGgrandfather

Cheers
David Dwyer