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Stephan Douglas Mathiesen, 70, of Mundelein, IL passed away at home on March 7, 2022 with his loving wife, Linda by his side. Steve, as he was better known by most, was born February 26, 1952 in Waukegan, IL to Deetta "June" and Vernon Mathiesen.
Steve is survived by his wife, Linda Mathiesen, daughter, Lindsay (Grant) Wilson, and son, Tyler (Kira) Mathiesen. Steve was also known as Grandpa to his two beautiful granddaughters, Finley and Raegan and a grandson who is expected to arrive this summer.
Steve worked for the City of Highland Park in the Building Division as Inspector for over 36 years prior to retiring in 2017. Steve was an avid golfer and a die hard Northwestern Wildcat fan and season ticket holder for both Wildcat football and basketball.
Steve could be described as a "gentle giant" who had a wonderful, dry sense of humor and was always equipped with a joke when it was most needed. His sweet demeanor and willingness to offer support and help to others is often what solidified his beautiful friendships with many. Steve will be remembered for his dedication in providing for his family and his quiet intuitiveness in almost any situation.
Steve is preceded in death by his parents, Vernon Mathiesen and Deetta "June" McCulloch.

In lieu of flowers, please consider making a donation to The Michael J. Fox Foundation for Parkinson's Research, which was an important organization to both Steve and his family.
Visitation is from 11AM-1PM Friday at the Kristan Funeral Home 219 West Maple Ave. (2 blocks west of Rt. 45 on Rt. 176) Mundelein. Funeral service will begin at 1 PM. Interment All Saints Cemetery.