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Mary Guerard

This obituary is protected by copyright by MacCoubrey Funeral Home Limited. Proudly serving Northumberland County in the province of Ontario, Canada. All rights reserved.

Mary Guerard

June 18, 1946 - April 3, 2026

Mary passed away peacefully at Ed’s House Hospice Care Centre in her 80th year, following a lengthy battle with mesothelioma. Throughout her illness, she shared her experience with others to raise awareness of the dangers of environmental pollutants, toxins, and chemicals.
Mary was the beloved wife of Douglas Smith and a devoted mother to Michael Guerard (Trixia), and to her stepchildren Kim (Dan), Heather (Curtis), and Greg (Valerie). She was a loving Nana to Gavin, Zoe, Charlie, Evan, and Arthur. Mary was the cherished sister of Rosaleen (Chris), Peter (Lindsey), Margaret (Robert), and Catherine (Peter), and was predeceased by her brother Harry (Debby). She was an adoring aunt to her nieces and nephews.
Mary cherished and nurtured life-long friendships wherever life took her – from her early childhood in Manchester, England and Northern Ireland, to Napanee, Ontario, her education at Hotel Dieu Hospital/Queen’s University, and throughout her years living in Sault Ste Marie, Oshawa and Cobourg. In every place she called home, she formed deep and lasting connections, carrying those friendships with her throughout her life.
Mary was an accomplished professional as a nurse and academic. She led a vibrant life, staying active through tennis, biking, hiking, pickleball, and golf, and enjoyed the opportunity to travel and see the world with her beloved Doug. They delighted in bringing their friends and family together creating lasting memories. Mary brought the gift of her love of life to all.
Mary was deeply loved and will be profoundly missed by all who knew her.
In recognition of the wonderful care that Mary received, memorial donations to the Northumberland Hills Hospital Foundation or Ed’s House Northumberland Hospice Care Centre would be appreciated by the family.

Message Of Condolence

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MESSAGES OF CONDOLENCE / DONATIONS

Cathy Morin - April 15, 2026 DONATION

A Memorial Donation has been made to the following charity:

Ed's House Northumberland Hospice Care Centre

Liz McCaughey - April 15, 2026

Mary was a lovely person and at one time enjoyed spending time at the Cobourg Yacht Club. I'm so sorry for your loss. My deepest sympathies.

ron wood - April 15, 2026

So sorry for your Goug and family she will be deeply missed by all who made her acquaintance. Ron and Jocelyne

Barbour Ann - April 15, 2026

Mary will be very missed. Her radient smile and love of life was obvious to all. Our condolences to you Doug and all her family.

Susan Fraser - April 15, 2026 DONATION

A Memorial Donation has been made to the following charity:

Northumberland Hills Hospital Foundation

Susan Fraser - April 14, 2026 DONATION

A Memorial Donation has been made to the following charity:

Ed's House Northumberland Hospice Care Centre