- McLeod, Daniel Rogers, 1913-1985.1
- McNair, Robert E. (Robert Evander), 1923-2007.12
- Medical University of South Carolina.3
- Mental health.1
- Meredith, James, 1933-1
- Mitchell, Clarence M. (Clarence Maurice), 1911-1984.1
- Montgomery (Ala.)1
- Montgomery Bus Boycott, Montgomery, Ala., 1955-1956.1
- Montgomery, Eugene A.R.1
- Morehouse College (Atlanta, Ga.)3
- Motion picture journalists.2
- Municipal courts.1
- Municipal incorporation.1
- Nance, M. Maceo (Milligan Maceo), 1925-2001.1
- National Association for the Advancement of Colored People.23
- National Governors' Conference.1
- National Guard (United States)1
- National Urban League.3
- Nelson, Annie Greene.1
- Newman, I. DeQuincy, 1911-1985.10