Dr. Jon Adams Jourdonnais
1928 - 2021
Dr. Jon (Jack) Adams Jourdonnais

An incredibly generous and trustworthy man has gone home. Dr. Jon (Jack) Adams Jourdonnais passed away peacefully on June 21, 2021 in Missoula, Montana, at the age of 92. Jack, humble as the day is long, lived a remarkable and accomplished life. He built a legacy of dedicated service and sacrifice, a sincere love of family and friends, athletic excellence, and personal values that mentored and blessed the lives of all those around him. Jack was born in Choteau, Montana on August 10, 1928 to parents Howard and Helen Jourdonnais. The family moved to Missoula, Montana in the early 1930's, during the depression years. Jack was an only child and made many good (lifetime) friends growing up in Missoula. He was starting fullback for the Missoula County High football team which won state championships in 1944, 1945 & 1946. Jack attended the University of Montana (while serving in the Army ROTC program) from 1947 through 1950. He played fullback and safety for the University of Montana (U of M) Grizzly football team during those years, lettering in 1949 & 1950. Jack also played catcher for the U of M Grizzly baseball club team, The LA Dodgers farm team drafted Jack in the late 1940's. He declined the offer to stay in Montana. Jack served as First Lieutenant with the 7th Army Infantry in the Korean War in 1951 and 1952. He was awarded the Purple Heart & Silver Star in combat for leading rescue teams through an active battle zone firefight to rescue wounded American soldiers. Jack married Adrienne Joy Terrell in 1953. They moved to Chicago where he attended Northwestern Dental School from 1954 through 1959, graduating in Orthodontics. In 1959, Jack and Joy moved to Great Falls, Montana where Jack started his Orthodontics practice and became active in leadership of the Great Falls YMCA, Great Falls Swim Team & other civic organizations. He served as Chairman for the State of Montana's Vocational Education Council. Jack served as a Great Falls School Board member from 1973 to 1975 and as Chairman of the School Board from 1975 through 1977. He served as President of Rocky Mountain Society of Orthodontists in 1979 (after holding several other offices). Jack was involved in local Church, Youth With A Mission, Promise Keepers & Cursillo ministries over many decades, with much of his family by his side. He also enjoyed big game hunting, fishing, backcountry camping, golf, handball & skiing adventures with family and close friends. Jack and Joy retired and moved to Missoula in 1993, spending the next couple decades cheering on the Grizzly football team, being active in faith-based ministries, traveling and spending time with family, caring for aging parents and elderly relatives, and enjoying the culture of Missoula. Jack's wife Joy passed away on July 3, 2016.

Son Jon remembers Jack's loving generosity, the many years of family swim meet and big game hunting adventures and his constant emphasis on integrity and self-discipline. Son Craig remembers Jack's encouragement, respect for other people, and being a loving generous grandfather. Son Scott remembers Jack having an ironclad commitment to values, serving others, being an incredible grandfather, an awesome mentor and always being ready for an adventure right up to the end. Daughter Lynne remembers Jack as a very well respected and generous man with a deep love for family and friends, who was an amazing father and grandfather, had a love for adventure no matter how small or great, a tendency for goofy antics, a love for everything ice cream, and a childlike wonder about everything Christmas, from picking out the tree to loading up the family to drive all over town to take in all the lights and yard decorations. Son Tyler remembers Jack's steady and loving guidance with direct truth and acceptance of the harder lessons to learn in life with the blessings of having such a loving mother and father.

Jack's passing is preceded by his grandson Joshua in 1996, father Howard in 2004, mother Helen in 2008 and wife Joy in 2016. He is survived by his 5 children, 11 grandchildren and 16 great grandchildren: son Jon (with wife Linda and 3 children Jessica, Jon Michael and Jana and 6 grandchildren), son Craig (with wife Jenny and 6 children, Adam, Jennifer, Jake, Mandi, step-children Beau Albright and Shayna Albright and 10 grandchildren), son Scott (with wife Mary Beth and 3 children Nate, Gabe and Hannah), daughter Lynne (with son Aaron) and son Tyler (with partner Christine).

A memorial service honoring Jack's life and legacy will be announced at a later date. The family respectfully suggests that any memorials be sent to Griz Kidz via website: https://grizkidz.com/, to the Holy Spirit Episcopal Memorial Foundation, or to a charity of your choice.

Published by Great Falls Tribune from Jun. 24 to Jun. 27, 2021.
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6 Entries
Jack trusted me with the care of his patients when I took over his practice in 1992. What a generous, kind man. What a wonderful mentor. We are eternally grateful. I hope he is somewhere in the high country chasing sheep. Thank you Dr J.
Dr Chris and Laura Bruch
July 6, 2021
Thank you for making the Great Falls swim team one of the greatest experiences of my life.
Terry Hensley
June 28, 2021
Thoughts and prayers are with you and yours.
Dawn Hammermeister
June 28, 2021
What a wonderful testimony of a life lived to the fullest. Heaven just became richer, sweeter, and more real. Blessings on all of the extended family - such a rich inheritance you have been given!
Alan Henry
June 27, 2021
Lauren Jourdonnais
June 27, 2021
Taking time writing a letter and sympathy card when our daughter passed away
Craig Jorgensen
June 25, 2021
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