Dennis Duesterhaus, a loving husband, father, brother, grandfather, and great-grandfather, passed away peacefully on Thursday evening, January 9, 2025. He was 80 years old.

Born on May 1, 1944, in Quincy, Illinois, Dennis was the son of the late Marie (Friye) and Paul Duesterhaus. He was preceded in death by his brother, Leslie (Les) Duesterhaus of Quincy.

Dennis is survived by his devoted wife, Teresa (Schulte) Duesterhaus of Kingman, Arizona; his son, Paul J. Duesterhaus II of Kingman; his daughters, Tracy(Craig) Gilbert (Duesterhaus) of Carrollton, Illinois, and Ericka Duesterhaus of Las Vegas; his sisters, Sharon Kelly (Duesterhaus) of Nashville, Tennessee, and Deborah Thacker (Duesterhaus) of Columbia, South Carolina; as well as three grandchildren, Jonathan Gilbert, Ambreeann Lee Cook (Gilbert), and Alexis Gilbert of Carrollton, Illinois, and two great-grandchildren Dakota Gilbert and Xander Gilbert both of Carrollton, Illinois.

A proud member of the Illinois Jaycees, Dennis was also known for his dedication to coaching Little League teams in both Quincy, Illinois, and Kingman, Arizona. His passion for mentoring young athletes left a lasting impression on the boys he coached, many of whom fondly remember him as a positive influence in their lives. His impact as a coach, along with his love and care for his family and friends, will be cherished for years to come.

Dennis will be deeply missed by all who knew him. His legacy of kindness, generosity, and devotion to others will continue to live on in the hearts of his loved ones. Now, he rests peacefully with the angels, forever cherished and remembered.

A Mass of Christian Burial will be held on Friday, June 13, 2025 at 11:00 a.m. St. Francis Catholic Church. Inurnment will be in Calvary Cemetery. In lieu of flowers, the family requests donations to a local Little League program or charity of choice in Dennis’s honor. Service arrangements are with the Duker and Haugh Funeral Home.