Mary Lou Brown passed away at her home in Boulder, Colorado on December 30, 2017. Mary Lou was born on May 26, 1928 to John and Olive Christman in Topeka, Kansas. As a young adult, she married her high school sweetheart, Paul Smith, when he returned home from WWII and they raised two sons together. Mary Lou was a lifelong avid reader and enjoyed her career as an administrative assistant for the Psychology Department at CU Boulder. She later married Dale Brown and they enjoyed 39 wonderful years together. They frequently traveled, spending many summers in the Colorado Rocky Mountains in Salida, Ouray, and Estes Park, and spent multiple winters in her favorite place of Tucson, Arizona. Mary Lou is survived by her two sons from her first marriage, David Smith and Daniel Smith (Donna) and grandchildren, Nathan, Lisa, and Amy. She is also survived by her step-children Kathy Edgar (Dennis), Jeff Brown, and Tim Brown (Genny). Mary Lou’s visitation will be on Friday, January 5, 2018 from 5:00-6:00 p.m. at Crist Mortuary, 3395 Penrose Place, Boulder, Colorado. Her funeral service will be held on Saturday, January 6, 2018 at 2:00p.m. at New Day Covenant Church, 2801 Jay Road, Boulder, Colorado. Refreshments will be provided following the service. To send condolences, please go to www.cristmortuary.com.