Names
- Marshall, Sir John Hubert, 1876-1958, director general of archaeology in India.1
- Martin, Renwick Harper, 1872-1958, clergyman, organization executive.1
- Mary Perry Smith1
- Mason, Thomas Monk, 1803-1889, aeronaut.1
- Massachusetts Institute of Technology1
- Mathews, Anne (Jackson), 1782?-1869, actress.1
- Mathews, Charles James, 1803-1878, actor.1
- Mathews, Charles, 1776-1835, comedian.1
- Maxwell School of Citizenship and Public Administration1
- McCarthy, E. Lance1
- McGirr, Newman F., 1877-1952, antiquary, librarian.1
- McKey, Lawrence "Tucky" Jr.1
- McKiernan, George S., fl. 1865, businessman.1
- McKnight, John1
- Menagerie Films1
- Mental Health Association1
- Merle d'Aubigne, Jean Henri, 1794-1872, theologian.1
- Merlet, Jean François Honoré, 1761-1830, deputy and president of the National Assembly;1
- Metropolitan Life Foundation1
- Mexican American Legal Defense and Education Fund1