Creator
- Martin, Joseph H. (Joseph Hamilton), 1825-1887.1
- Martin, R. O.1
- Martin, William M. (William Maxwell), 1837-1867.1
- Martin.1
- Martinelli, Fioravante, active 17th century.1
- Martyn1
- Mary Morley & Son.1
- Mashburn, Edward1
- Mason Studios (Clarksdale, Miss.)1
- Mason, James E. (James Edward), 1859-1
- Mason, Nelson.1
- Massachusetts Prison Association.1
- Massachusetts Racial Protective Association.1
- Mastin, Claudius H. (Claudius Henry), 1826-1898.1
- Mathesius, Johann, 1504-1565.1
- Mathews Art Service (N.Y.)1
- Mathews Post Card Service (N.Y.)1
- Mathias, Ted.1
- Matthews, Kate, 1870-1956.1
- Matthiessen, Frederic G.1