Donald ‘Don’ Eugene Miller ’53 of Englewood, Colo., died April 26, 2011. Born in 1930, Don grew up in south Denver and attended South High School. He graduated from Mines with a professional degree in metallurgical engineering, and was a member of Beta Theta Pi fraternity. Don served in the U.S. Army for two years. He spent much of his business career with Gates, where he eventually served as president for 10 years. In 1996, he retired as vice chairman. He also served on the boards of Mountain States Employers Council, Rubber Manufacturers Association, Armstrong Rubber, and Great Northern Nekoosa, among others. Don remained involved at Mines, having served on the board of trustees and the CSM Foundation board. He was awarded an honorary doctorate of engineering, a Distinguished Achievement Medal and the Coolbaugh Award. He is survived by his wife of 59 years, Barbara; sons, Steve and David; four grandchildren; and one great-granddaughter.