A search is on for a 62-year-old Mexico woman who went missing from the Oxford County town on Saturday. Mary Ann Rumley Maine Wardens The Maine Warden Service said Sunday that Mary Ann Rumley was last seen walking her black Labrador retriever about 10:30 a.m. Saturday near 51 Highland Terrace. She was wearing black pants and a gray shirt and possibly gray leggings, the warden service said. Anyone with information about Rumley is urged to call the Maine Warden Service at 657-3030 or the Mexico Police Department at 743-9554, ext.