Dennis Michael Pierce, age 78, passed away on October 22, 2023, in Cheyenne, Wyoming, surrounded by his loving family after a long and courageous battle with Chronic Obstructive Pulmonary Disease (COPD). He is survived by his only child, Erin (Barry) Benedict, and his two cherished grandchildren, Dylan Hoock and Sierra (Damian) Olaveson. He is preceded in death by his wife of 50 years, Joan, and his infant son, Dylan.