Donald Duane Fisher, 89, of Boulder, Colorado passed away on October 25, 2017. Donald was born on May 18, 1928 in Eagle Grove, Iowa to Ralph and Esther Fisher. Mary and Donald were married on November 10, 1950 in Dubuque, Iowa. After retiring as a Master Sergeant from the United States Air Force Donald began his second career with the U.S. Postal Service. Donald enjoyed fishing, square dancing, bowling and playing cards. Donald is survived by children, Steve Fisher (Marilyn) and Valerie Baylie (Patrick); sister, Mildred Howlett of Britt, Iowa; grandchildren, Courtney Baylie, Cameron Baylie, Caitlyn Baylie, Daniel Fisher, Stephanie Fisher and Brian Fisher (Leann); and great grand-son Louie Fisher. He was preceded in death by his wife, Mary; brothers, Glen Fisher and Harold Fisher; long time companion, Harriett Russell and his parents. The funeral Mass will be celebrated on November 30 at 1:00 PM at Sacred Heart of Mary Catholic Church. Please visit www.greenwoodmyersfuneral.com to offer condolences.