Cover photo for John Garth Denison's Obituary
John Garth Denison Profile Photo

John Garth Denison

April 4, 1941 — January 23, 2024


John Garth Denison

It is with a heavy heart that we share the passing of a beloved husband, loving father and grandfather, Garth Denison.  Garth passed away peacefully at the Brampton Civic Hospital on January 23, 2024.  He will be remembered by his family, friends, colleagues and students for his infectious personality and his witty sense of humour.  

He made significant contributions to the HVACR industry for over 50 years, impacting so many with his leadership and knowledge.  Garth was referred to by many as the "grandfather of refrigeration".   He was a very passionate mentor, always sharing his knowledge and never hesitating to help others.  

Garth will be dearly missed by everyone who knew him.  The family will be having a private service.


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