- Marchant, Trelawney, E., 1887-19501
- Mayors--Election1
- McArthur, Douglas, 1880-19642
- McCain, John, 1936-20182
- McCarthy, Eugene J., 1916-20051
- McGovern, George S. (George Stanley), 1922-201214
- McLeod, Daniel Rogers, 1913-19851
- McMillan, John L. (John Lanneau), 1898-19771
- McNair, Robert E. (Robert Evander), 1923-20074
- McNary, Charles Linza, 1874-19442
- Medicare1
- Medlock, Travis1
- Miller, William E. (William Edward), 1914-19839
- Mills, John Henry, 1913-19841
- Mills, Wilbur D. (Wilbur Daigh), 1909-19921
- Mondale, Walter F., 1928-1
- Mondale, Walter F., 1928-202124
- Morrah, P. Bradley1
- Morris, Earle1
- Morris, Earle E.2