Mary Casman Boast (June 12, 1928 - March 12, 2018), passed away at age 89 in Littleton, Colorado. She is survived by her daughters, Mary Nolan and Megan Behnke, son Robin Boast, seven grandchildren and five great-grandchildren. She was preceded in death by her husband of 56 years, William Boast, and her son, Colin.