I believe he is the brother of my great grandmother, Delphine Blondin McCoy. She married Oscar McCoy in Curran, Ontario in 1871 and they moved to Bay City, Michigan about 1880 with five children. They had two more children in Bay City.
I suspect that your birth date might be wrong, though. Delphine was born June 4, 1853 in Plantagenet, Ontario. She was baptized on June 19, 1853 at St. Luc, Curran, Ontario. The information I have is that Theophile was baptized April 8, 1855 and he was born March 2, 1855. In the 1861 census Tufee was 4 years old and Delfie was 6, which is a little off, and in the 1871 census both Delphine and Toffried were said to be 17. I guess they had a little trouble keeping track of birth dates and ages.
I have more information regarding this family, including information on their parents. The parents had at least 12 children, probably 14 or 15.
I don't have much information about Theophile, except I did find one birth record in Bay City for Delia, born 1904 in which her mother is said to be Josephine.
I would like to share what information I have and would like to add what you have on this family to my records. Please contact me if you are still interested.