Duane Ralph Waldo, 92, of Tucson, Ariz., passed away on Thursday, March 17, 2022. Duane was born and raised in Oberlin, Kan., to Ralph and Alice Waldo. He graduated from Kansas State University with a Bachelor of Arts degree in architecture in May 1953. After graduating, Duane was drafted into the U.S. Army and served at Fort Riley, Kan., for two years. He married Marilyn Jean Roeth, who grew up in Waterville, on Nov. 22, 1952. From 1953 thru 1974, Duane worked for several architectural firms in both Kansas and Colorado. In 1974, Duane partnered with two associates to form LKA Partner, Inc., an employee-owned architectural firm which designed school and state facilities. For over 48 years, Duane and Marilyn lived in Colorado Springs, Colo., where they raised their two sons. After retiring in 1995, Duane and Marilyn began to travel. They enjoyed their visits to Europe, the Scandinavian countries, England, Israel, Egypt, Greece, Turkey, China, Vietnam, Thailand and Singapore. Duane and Marilyn moved to Saddlebrooke, a retirement community near Tucson, Ariz., in 2005. After moving to Saddlebrooke, Duane took woodcarving and oil painting classes, which rekindled his joy of art.