- Mersereau, Hiram1
- Middleton, Laura L.1
- Mills, Robert, 1781-1855.1
- Moise, Warren Hubert, 1886-19381
- Montgomery, Rosa S.1
- Montgomery, Sue Thermutis, 1845-18661
- Moore, Ronnie M. (Leadership Development Director, Scholarship Education and Defense Fund for Racial Equality)1
- Moorer, L.A.J.1
- Morris College (Sumter, S.C.)
1
- Mortensen, Davis1
- Moses, Octavia Harby, 1823-19041
- Munger, Guy1
- Mussell, William1
- Nicholes, Isaac1
- Nicholes, Isaac, Jr.1
- O'Boyle, Peter1
- Oakley, Donald, 1918-20131
- Osteen, H.D.1
- Osteen, Thomas (fl. 1878)1
- Page, Levona1