My paternal great-grandmother was adopted out and I've been looking for her biological family.
She was born April 15th, 1936 in Chatham, Northumberland, New Brunswick, Canada. She then became Mary Doucette, but her birth last name was Dunn.
I had a theory that she might have been born at either St. Joseph's catholic hospital (there was records of a few nurses with the last name Dunn) or in association with The Sisters of Chatham in general, (There was also a "Sister Dunn").
Thank you for any tips or information.