Dennis Gene Marshall, 67, of Belvidere, IL passed away Friday, July 9, 2021, at Swedish American Hospital in Rockford, IL. He was born on April 25, 1954, in Woodstock, IL to the late Orville and Juanita Marshall. Dennis was a Dallas Cowboy fan and enjoyed spending time with his family and best friend Chuck. He is survived by his daughter, Danni Marshall; grandchildren, Scott (Autumn), Eric, and Madeline; great-grandchildren, Harrison, and Victoria; sister, Star Garlic; brother, Butch (Carrol) Marshall; best friend, Chuck Dorsey. He is preceded in death by his parents, and brother Bill Marshall. Condolences may be shared with the family at www.belvdierefh.com .