Hi,
Your grandfather was the son of Maxime Lirette and Marie Zelica Gaudet; the complete ancestry can be found here:
http://www.chocolate-river.com/lirette/f1469.htmMost of the information on your family came from your grandmother Beatrice before she died, and also from your aunt Margaret. The information on Edward's ancestors came from public records, and most should have the source given for where it came from.
I hope this is useful to you.
Kindest regards
Tony LeBlanc