Mary Frenier Buonassisi

My Step-Mother-In-Law's Grandmother, was named Mary Frenier- Buonassisi. She was born in Canada. However, I do not know where. Her date of birth was, September 3, 1888.

Her place of death is, Brockton Massachusetts. Her death date is, July 7, 1983. Her mother's maiden name was Cox. I am looking for, both her parents' first names and information. I would appreciate the help. Thank you.