Helen Koester, 91, passed away on April 21st 2012 in Sierra Vista, Arizona. Mother of Mary Koester and Sandy (Greg) Jenkins. Helen is preceded in death by her husband Wayne Koester and her six siblings; John Green, Sam Green. Edward Green, Ruth Barber and Mildred Myers. Helen is a life member of the Telephone Pioneers and the American Historical Society of Germans from Russia (AHSGR). Visitation will be on Sunday, April 29th 2012 from 2:00PM until 5:00PM at Horan & McConaty Family Chapel, located at 3020 Federal Boulevard in Denver. Funeral Services will be held at the same location on Monday, April 30th 2012 at 10:30AM. Interment to follow after services at Forth Logan National Cemetery located at 3698 South Sheridan Boulevard in Denver. Please share your memories of Helen and condolences with her family by selecting the ""Sign Guestbook"" tab below.