- Librarians, Black3
- Libraries--Alabama3
- Libraries--Sweden3
- Library schools--Texas3
- Library science3
- Library science--Congresses3
- Literacy programs3
- Manning, Richard Irvine, II--Finance, Personal3
- Marion County (S.C.)--History3
- Mayer, Adam, 1787-1834--Correspondence3
- Mazyck, William Galliard, 1846-1942--Correspondence3
- McCord, David James, 1797-1855--Correspondence3
- McNair, Robert E. (Robert Evander), 1923-20073
- Means, J. H. (John Hugh), 1812-1862--Correspondence3
- Medically underserved areas3
- Military camps -- South Carolina -- Columbia3
- Militia--South Carolina3
- Miller, Abram--Correspondence3
- Minorities in library science3
- Mitchell, Thomas Rothmaler, 1783-1837--Correspondence3