Gregory Neal Flesch, age 65, of Frankfort, Illinois, passed away peacefully surrounded by his loving family on Sunday, November 9, 2025. Born on June 12, 1960, in St. Louis, Missouri, to Calvin Otto Flesch and Mabel Ellen Huelskoetter, Greg had a distinguished 40-year career with GMAC/Ally Bank, culminating as Director of Commercial Underwriting/Risk Management.
Greg was a devoted husband to Marsha, a loving father to Garrett and Jacob, and an active presence in his children’s sports teams. His passion for the St. Louis Cardinals and Kansas City Chiefs reflected his lifelong sports enthusiasm. Greg’s commitment to community extended to his roles in Immanuel Evangelical Lutheran Church and as an HOA Secretary. His legacy as a man with a big heart, imbued with love and compassion, touched the lives of many.
Survived by his wife, sons, father, and sister, Greg was a special brother-in-law, uncle, cousin, and friend. Preceded in death by his mother, Mabel, Greg’s memory will be treasured by those who knew him.
Visitation will be held at Kurtz Memorial Chapel in Frankfort on November 14, 2025, while services will take place at Immanuel Evangelical Lutheran Church on November 15, 2025. Donations in Greg’s honor can be made to Concordia Seminary in St. Louis, Missouri, and Redeeming Life Outreach Ministries Illinois Maternity Home in East Dundee, IL.
The funeral service will be livestreamed via the Immanuel Mokena website for those unable to attend in person.
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