David F. Janssen passed away peacefully Tuesday, May 19, 2026. Beloved husband to Karen, married for 52 years. Father to Jamie (David) and Joe. Grandfather of 6 (A.J., Dimitri, Sean, Sammi, Connor and Maddie). He was the son of Alice and Lee Janssen. The best brother to Ruth, Dianne (Ron) and Neal and brother-in-law to the Annarella clan.

Originally from Milwaukee, Wisconsin and went to Bay View High School and UW-LaCrosse. Originally A Long time resident of Itasca, IL, he recently retired at Castle Rock Lake in Wis. A dedicated career as a firefighter/paramedic, He served 35 years at Addison Fire Department as well as serving on the Itasca & York Center Fire Depts., ending his career as a Commissioner for the Itasca Fire Board. In retirement, he volunteered for the Quincy Fire Department, Adams County Board of Appeals, Property Committee at Trinity Lutheran Church and Meals on Wheels. He enjoyed life to the fullest. Always there to help or make others laugh. A man dedicated to family first and to his fellow brother firefighters.

Memorial Visitation Sunday, May 31, 2026 from 1:00 PM to 4:00 PM at Humes Funeral Home, 320 W. Lake St., Addison (2 Mi. W. of Rt. 83, 2 Mi. E. of Rt. 53). Interment will remain private. For additional information call 630-628-8808.