Gladys Montana Olsen Sanderson, 97 of Billings, passed away peacefully on November 1, 2011, at Aspen Meadows. Cremation has taken place. Graveside Memorial Services will be held at 2:00 P.M., Saturday, November 5, 2011 at Mountview Cemetery (Section 8). She will be laid to rest next to her husband Lorin. Memorials may be made in Gladys’ name to the Billings Clinic Volunteer Services, Yellowstone Art Museum, or the charity of one’s choice.