What a surprise to have a reply nearly 10 years after my inquiry was posted! My wife's maiden name is Karen McDonough. She was born in Brockton, MA, but we recently moved to Orlando, FL.
So here is a short summary of the lineage:
Karen's mother was Marie Louise Fredette (1927-).
Louise's father was Joseph Eddy Fredette (1902-1988)
Joseph's father was Francois Fredette (1871-1922)
Are we on the same page?