Mary was preceded in death by her husband, Orville C.; 2 siblings, Don Chamberlain and Maris Chamberlain and her parents, Nellie and Fred Chamberlain. She is survived by her son, James J. (Gloria) Volker of Greenwood Village, CO; 4 grandchildren, Dr. Ellen E. Volker of Grand Junction, CO, William J. (Molly) Volker of Raleigh, NC, Luke J. (Michelle) Volker of Greenwood Village, CO and Naomi D. Cabrera of Centennial, CO and 4 great grandchildren, William J. Volker, Jr., Logan J. Volker, Ralph A. Romero-Rico and Ashley L. Cabrera. Public viewing will be from 2-2:30 PM followed by a Funeral Service at 2:30 PM on Saturday, December 19th at Horan & McConaty Family Chapel, 5303 E. County Line Rd., Centennial, CO. Mrs. Volker will buried next to her husband at Webster Township Cemetery in Scotch Ridge, OH. Please share condolences with Mrs. Volker's family at HoranCares.com