Roy Robert Burton b. 1916

I am trying to solve the mystery of where my uncle Roy Robert Burton has ended up. He was born in Stratford, Ontario on November 11, 1916. After many letters and phone calls I have found out that he was admitted Feb 2, 1938 to Hamilton Psy. under the name Leroy Robert Burton. He was then transferred to St. Thomas Psy. Oct 26, 1939. He was discharged June 19, 1973 to The Brunner Residential Home-Home Special Care. The Brunner Nursing Home is located at 6124 Ana Street Brunner Ontario. The name of the home has been changed to COUNTRY MEADOWS RETIREMENT HOME. They currently have no records from that time.
I am trying to find out if he is still living or has since deceased. If deceased , his final resting place. Any information that anyone could provide would be greatly appreciated.

--Mark Burton