- Medical offices1
- Midcom Corporation, Newman, I. DeQuincey (Isaiah DeQuincey), 1911-19851
- Mills Family1
- Minority women--United States--Societies, etc.1
- Minutes and proceedings1
- Miss Piggy (Fictitious character)1
- Mizell, M. Hayes1
- Monaghan Mill (Greenville, S.C.)1
- Monuments--South Carolina--Cowpens--Pictorial works1
- Morris College (Sumter, S.C.)1
- Moultrie, Lake (S.C.)1
- Mount Zion Baptist Church (Fairfield County, S.C.)1
- Music5
- Music posters1
- Music teachers3
- Myrtle Beach (S.C.)1
- National Association for the Advancement of Colored People3
- National Association for the Advancement of Colored People. Charleston Branch (Charleston, S.C.)3
- National Clearinghouse for Bilingual Education1
- National Institute of Education (U.S.)1