1951 Beloit High School, Page 36: Madge F. Mackey, Ida Mae Markley, Sally Marie Marsden, Nellie Wilhelmina Marshall, Donald Kenneth Maryott, Suzanne Marie Maryott,
Elizabeth Joanne Masters, Marvin Quentin Mattison, Muriel E. May, Roger Thomas Mecca, George D. Merchant, Joan Marilyn Merklein, Barbara Ann Merlet, David A. Miller, Geraldine Ann Miller.