

Born in Ottawa on July 3rd, 1955, to Donna Cloutier and Gerald Flannery, Mary brought love, compassion, and joy to everyone fortunate enough to know her.
Mary was the devoted wife of Marc Castonguay, with whom she shared a full life. She was a proud and loving mother to Alexa, Erika, and Christopher, and a doting "Gamma" to her treasured grandsons, Brysen and Hudson Castonguay and future baby Krugmann.
As a nurse, Mary dedicated her life to the care and well-being of others, embodying kindness and empathy in all that she did. Her patients and friends alike were touched by her warm spirit and wonderful conversations.
Mary's legacy lives on in the hearts of her family and friends, who will forever cherish the laughter, love, and wisdom she so generously shared. She had an extraordinary ability to light up a room and inspire joy in those around her.
A memorial will be held to honour Mary’s remarkable life on April 14th 2025. The visitation for Mary will be held Monday, April 14, 2025 from 10:00 AM to 11:00 AM at McEvoy-Shields Funeral Home and Chapel, 1411 Hunt Club Road. A memorial service will be in the Chapel at 11:00AM with a reception to follow. Burial to take place at Notre-Dame Cemetery.
In lieu of flowers, the family kindly requests that donations be made in her memory to the CHEO Foundation that reflects her love for children.
May she rest in peace, forever loved and remembered.
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