Creator
- MacLachlan, Maud1
- Macia, Adrian4
- Malaret, Blanca1
- Malone, Dorotha1
- Mann, Kathleen1
- Mansfelde, A.S. von5
- Marshall, Mary Louise, 1893-2
- Martí-Ibáñez, Félix, 1915-19721
- Mayer, Edgar, 1889-1
- Mayer, Willard D.1
- Maynard, Edwin P.1
- McCaw, Walter D. (Walter Drew), 1863-19393
- McClain, A. V.4
- McCoy, Adolphus E.1
- McCoy, Frank Ross, 1874-19541