Life of Innovation and Impact

Dr. Spence passed away on August 10, 2025, aged 80.Schulich School of Medicine & DentistryHarris Funeral Home
Born in Talara, Peru, he later moved to Canada, where he completed his B.A. (1965) and M.D. (1970) at the University of Western Ontario.Schulich School of Medicine & DentistryHarris Funeral Home
He was a globally renowned neurologist and researcher. As founder of the Stroke Prevention and Atherosclerosis Research Centre at Robarts, he pioneered the use of ultrasound measurement of carotid plaque for cardiovascular risk assessment and stroke prevention.Schulich School of Medicine & Dentistryesc365.escardio.orgResearchGate
Over his career, he treated more than 40,000 patients and published over 600 peer-reviewed articles.Schulich School of Medicine & DentistryHarris Funeral Home

Honors & Personal Life

He was appointed a Member of the Order of Canada in 2019, recognizing his profound contributions to stroke research and clinical care.Schulich School of Medicine & DentistryHarris Funeral Home
Known for his extraordinary work ethic—often starting workdays at 4 a.m.—he continued working up until his passing.Schulich School of Medicine & DentistryHarris Funeral Home
Born to Jack and Josephine Spence, he was married to Dr. Ann Spence for over 50 years. He is survived by his wife, sister Mary‑Louise Colmenares (Rafa), three sons (Jeff, Tim, and Jack) and numerous grandchildren. He is predeceased by a grandson, Tom.Harris Funeral HomeLegacy
The obituary fondly recalls his wit, warmth, and love of family—always ready with a story or song, enjoying simple joys like playing games or picking apples.Harris Funeral HomeSchulich School of Medicine & Dentistry