Hi Adrienne,
I have a few puzzle pieces for you.
http://familytreemaker.genealogy.com/users/f/o/s/Muriel-Fost...This website lists the family of William Gordon Craig, including his first and second wife. His second wife was Ivy Kathleen Goffin. She is my father-in-law's half sister.
My search for the craig family started 2 days ago when my wife had recalled some names of family members out of the blue. So far I have been able to track the Craig family line back to Ireland in the mid 1750's. Long strong history in Nepean, Carleton County, Ontario.
I hope this is helpful,
Murray