1931 Rockford High School, Page 40: John Edward Mackey, Margaret Dale Madden, Frank Burdette Madsen, Ina Marion Magnuson, Lydia Adele Maguire, William Kent Mansfield,
Albert Markunas, William Emory Mason, Lucile Genevieve Mathre, Marie Josephine Melchert, Inez Miller, Ruth Arlene Miller.
