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Gilbert Demange
1928 - 2026
BORN
1928
DIED
2026
Gilbert Demange Obituary
Born: December 9, 1928
Died: January 17, 2026 in Riverside, IL
Dr. Gilbert "Gil" Demange, 97, passed away peacefully surrounded by family. He was a respected physician, devoted father and grandfather, and a man known for his compassion, integrity, and lifelong curiosity.
Born in 1928, Dr. Demange survived polio as a young boy, an experience that helped inspire his interest in medicine. He graduated from medical school in 1951 and served as a U.S. Army physician during the Korean War. After returning home, he completed his surgical residency and later established a medical practice in Lyons, Illinois, where he cared for patients for many decades. He was known as a doctor who listened, remembered, and treated every patient with dignity.
Dr. Demange lived by the Golden Rule and believed in treating everyone with respect. He approached the world with deep curiosity and a constant desire to learn. Throughout his life, he enjoyed reading, gardening, investing, and studying new ideas-always seeking to understand how things worked and how people lived.
In 1955, he married Marion, the love of his life. They shared many years together before her passing in 2018. After selling his practice, Dr. Demange pursued an Executive MBA and, in retirement, explored new interests and hobbies. He remained intellectually engaged with the world throughout his life.
Dr. Demange is survived by his seven children and ten grandchildren. He will be remembered for his kindness, his steady moral compass, and the example he set for caring for others.
To plant trees in memory, please visit the Sympathy Store.
Memories and Condolences
for Gilbert Demange
14 Entries
Hilbert Ermango
Earlier today
One of the good ones.
Godspeed, Doc.
Hilbert Ermango
Peter Anita Leon Emma & Lucy O Regan .
Earlier today
To Kate and all the Demange family. Sincere condolences to you all on the sad passing of your dad. It was wonderful to have met him at your wedding. A beautiful tribute to your dad. May he rest in peace
Jesse Mannion, Galway, Ireland
Earlier today
My condolences to Kate, Alan, Sofia, John and the Demange family on the sad passing of Gilbert. May he rest in peace.
Vincent & Mary Conway & Family
Earlier today
Sincerest Sympathy to Alan Kate Sofia John and all the Demange family and extended family and friends on the loss of Your Father Grandfather and Friend. May he rest peacefully in the Gentle arms of our Lord Jesus. Thinking of you all at this time and sending love from Brierfield, Galway, Ireland
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Laura O
Yesterday
I will never forget that amazing laugh and the twinkle in his eyes. He could light up a room. You felt better after talking to him- even if you didn´t need to be cheered up. You are a gem, and you will be deeply missed, Papa D.
Margaret Mills
Yesterday
Wishing our sincere condolences to Alan Kate Sofia John and all the Demange family on the passing of your father/grandfather. Treasure all the wonderful memories of him. May he rest in eternal peace.
Love Margaret Liam and Mills family Brierfield, Galway Ireland xx
Gerard & Deirdre O'Connor
Yesterday
Dear Kate ,Alan ,Sofia & John and the Demange Family our sincere sympathy on the sad passing of Gilbert.
Thinking of you and your family at this difficult time. Your dad's love and spirt will live on in the many memories you have of him.
May he rest in peace.
Gerard ,Deirdre & the O'Connor family . Brierfield, Ireland
Edward O Regan
Yesterday
Deepest sympathy to all the family. May he rest in peace.
Patrick O´Regan
Yesterday
Offering our condolences to Kate, Alan , Sofia, John and all the Demange family on the loss of your father and grandfather may he rest in peace.
Pat, Jackie, Joseph, Laura, Katie and Martha
Michael Higgins, Philadelphia
Yesterday
Sincere condolences to Kate/Alan and all the Demange family is the passing of your dad, what a great life he lived. Thinking of you all in this difficult time. May he rest in peace
Mary o regan
Yesterday
To Kate and all the Demange family, sincere sympathy on the loss of your beloved Dad. Alan always spoke very highly of him. We met him the week of your wedding and he was a true gentleman. May his soul rest in peace Mary O Regan
Pamela Killilea
Yesterday
Simcerest sympathies to Kate, and all the family on the passing of your wonderful Dad. A beautiful tribute to him. Sending love and prayers. Pamela Matthew Maia and Robert Killilea xxx
Mary o regan
Yesterday
To Kate and all the Demange deepest Comanches on the passing of your lovely dad met him once and he was a perfect gentleman may his soul rest in peace mary oregan
Lorraine O Regan
Yesterday
My deepest sympathy to you all on your sad loss. He will be remembered for the positive impact he had on so many lives. Lorraine, Jon, Michael and Amy Galway Ireland
Showing 1 - 14 of 14 results
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