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- Macdonald, Peter1
- Magnuson, Warren G., 1905-19891
- Martin Luther King Jr. Suggestions1
- McCurdy, Dave, 1950-1
- McKeown, Tom D. (Tom Deitz), 1878-19511
- Motah, Lee1
- Mundt, Karl Earl, 1900-1974)1
- National Organization for Women1
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- Nesbitt, Frank W.1
- Newman, Martha J.1
- Nowabbi, Samuel, 1911-19801
- O'Konski, Alvin E., 1904-19871
- O'Mahoney, Joseph C., 1884-19621
- Oberstar, James L., 1934-20141
- Osmundson, David L.1
- Pepper, Claude, 1900-19891
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