- Martin Hall (Clemson, S.C.)2
- Masonry domes1
- McCain, James T.6
- McCulloch, Dorothy, 1938-1
- McNair, Robert E. (Robert Evander), 1923-20074
- Medical College of South Carolina (1952-1969). School of Nursing--Periodicals1
- Medical College of South Carolina (1952-1969). School of Nursing--Students--Yearbooks1
- Medical University of South Carolina1
- Medical University of South Carolina--History--20th century1
- Medical University of South Carolina. College of Nursing--History--20th century1
- Men--South Carolina--Moncks Corner--1960-1970--photographs1
- Microsurgery:Binocular loupe1
- Minorities--Education (Secondary)--United States.10
- Minority women--United States--Societies, etc.2
- Minutes and proceedings1
- Missionaries--Japan1
- Mosques1
- Mount Carmel Baptist Church (Pickens County, S.C.)1
- Mount Zion Baptist Church (Fairfield County, S.C.)1
- Mullins First Baptist Church (Marion County, S.C.)2