Margaret M. Kettering, 91, of Billings, passed away on Tuesday, Dec. 9, 2014, at St. Vincent Healthcare. Margaret was a resident of Mission Ridge at the time of her death. A memorial service will be at 10 a.m. Saturday, Dec. 13, at First English Lutheran Church of Billings, with Rev. Stacy Siebrasse officiating. A fellowship lunch to follow. In lieu of flowers, donations to the American Cancer Society are greatly appreciated.