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Clark JohnCLARK, John Alexander - 60, Radiologist, husband, father, outdoorsman, handyman, oenophile.

Born in Montreal to David Blackwood Clark & Barbara Jean Clark (ne Griffith). Died of brain cancer in Toronto on September 22, 2020.

In addition to being extraordinarily intelligent and accomplished, John was an uncommonly kind and compassionate person.

John commenced his education at McGill, where he earned a Bachelor of Science with a Major in Physics and a Minor in Computer Science, and later attained a Master’s in Medical Physics.

He pursued a medical degree at McGill, following in the footsteps of his grandfather, Dr. Harold Griffith, who is widely considered a pioneer in the field of Anesthesia. John completed his medical degree at the University of Toronto and pursued a residency in Radiology.

In 1978 he met his wife Marsha, who lived across the hall from his high school girlfriend in the dorm at McGill. Although complete opposites, over time they found they complimented each other perfectly and married in 1986. Their children Oliver and Rachel were born in 1994 and 1996. An affectionate and engaged father, John was unconditionally supportive of his children. He cherished family dinners and was always eager to help with anything from 5th grade math homework to moving into a first apartment after graduating from University.

He was due to leave for this year’s first ski trip in January 2020 when his sudden difficulty with speaking led to the diagnosis of brain cancer.

With sadness and shock, he retired immediately. Subsequent loss of speech and cognitive skills caused considerable frustration, but he handled it with courage, fortitude, and acceptance. Not to say he was a typical patient – he self-adjusted his medication and reviewed his MRI images with intent and interest until the end.

He is survived by his wife Marsha Jane Copp, adult children Oliver Copp Clark and Rachel Copp Clark, mother Barbara Jean Clark (ne Griffith), brother James Randall Clark and Jim’s partner Diane Bowman.

He also leaves his beloved aunt, cousins and cousins by marriage in Canada, the US, England and Hong Kong.

In lieu of flowers, please consider supporting Scarborough Health Network’s important work in community healthcare ( or urgently needed brain-related research through Brain Canada ( or The Brain Campaign at Toronto General & Western Hospital Foundation (

A memorial service will be held at Rosedale United Church Sept 28, 2020 at 2:00 pm with a set number of attendees - please email This email address is being protected from spambots. You need JavaScript enabled to view it.. Advance signup and masks are both mandatory. The service will also be live-streamed.

The family will be holding visiting hours at home with advance sign up. See for days & times. Visits will be held outdoors if possible, or indoors with masks if necessary.