John Edward McMahon (Jack) M.D., age 92, passed away peacefully on February 17, 2025, with his family by his side. Jack was born to John and Regina McMahon on November 18, 1932, and, together with his three sisters, was raised in Grand Rapids Minnesota, a place he loved all his life and where he had the great good fortune of meeting the beautiful Mary Margaret Reisinger from Nashwauk Mn.

Mary Margaret and Jack married in 1957 and moved to Milwaukee Wisconsin, where Jack attended medical school and started his family with the alarming arrival of twins, who were followed over the next several years with 4 more children.

After the completion of Jack's medical training and military service, the family settled in the Twin Cities area. Jack practiced as an orthopedic surgeon and was an innovator and leader in total hip replacement surgery, until his retirement at age 68.

Jack loved life and lived it fully. He adored his wife, his large and continually growing family, his work, and his many friends. He was curious and funny and interested in everyone he met. He loved adventure, whether he and Mary Margaret were traveling the world, skiing in the Rockies, or "working" at the cabin. He loved playing the piano, and played every day he could with passion and joy. He was a storyteller, a thinker, a man with a great sense of humor and a wonderful husband and father.

Jack is survived by his wife, Mary Margaret, children, Mary McMahon, Margaret Poley, Siobhan McMahon, John McMahon, Patrick McMahon and Molly Keeley as well as 15 grandchildren and 4 great grandchildren.

Funeral plans are pending and will be posted in the future.

Memorials may be directed to St. Patrick's Church in Edina MN