- Marion, Francis, 1732-17951
- Marion, Francis, 1732-1795--Correspondence1
- Maxey, Russell, 1906-19941
- McCormick County (SC)--Description and travel1
- McCormick County (SC)--Pictorial works1
- Mecherle, George J. (George Jacob), 1877-19511
- Medicine--South Carolina--Charleston County--History1
- Memorials1
- Men1
- Merrill, Dick, 1894-19821
- Military camps1
- Mills Family1
- Monuments--South Carolina--McCormick County--Pictorial works1
- Morris College (Sumter, S.C.)1
- Mount Carmel Baptist Church (Pickens County, S.C.)1
- Mountain Creek Baptist Church (Edgefield County, S.C.)1
- Mullins (S.C.)--Newspapers1
- Mullins First Baptist Church (Marion County, S.C.)1
- Municipal ordinances1
- Musicians1