Mark Steffen

Mark Dennis Steffen, age 63 of Montello passed away unexpectedly Monday, June 8, 2026 as the result of a UTV accident. Mark was born in Fond du Lac County on May 13, 1963 to Dennis and Eileen (Buetow) Steffen. He graduated from North Fond du Lac High School in 1981 and worked at Mercury in the Racing Division for 35 years. Mark moved to Montello in 2018 and moved onto “The Farm” after he and Janet renovated the farmhouse together. Mark retired in 2023. Mark enjoyed hunting, golfing, spending time with friends and family especially his hunting buddies, son and grandson.

Mark is survived by his mother, Eileen Steffen, son, Shane (Courtney Cratchy) Steffen and grandson, Wyatt Steffen all of Fond du Lac. He is also survived by his sister, Mary Crossman, brother, Mike (Geri) Steffen, nieces: Lexi (Brandon), Abby (Brody), Katie, Jessica and Ashley and special cousin and friend, Steve Klotz. Lastly, Mark leaves behind his longtime partner, Janet Mueller of Montello.

Mark is preceded in death by his father and brother-in-law, Jerry Crossman.

A Celebration of Mark’s Life will be held on Friday, June 26, 2026 from 3:00 until 6:00 PM at American Legion Post #351 in Montello.

Crawford Funeral and Cremation Service of Montello and Oxford is honored to be serving the family. www.CrawfordFH.com