Creator
- M. Valle & Ca.1
- MacManus, Elizabeth Riegler (1923-2008)1
- Maguire, Charlotte Edwards1
- Mahan, Charles S. (1938-)1
- Maksimilian Dikarev1
- Malkoff, Sol, 1918-20011
- Mana-Zucca1
- Mansfield, Charlotte D.1
- Mansuy, William Alfred1
- Marion Rinhart1
- Marrero, Leví1
- Marshall, Stanley1
- Marshman, Helen P.1
- Marshman, William Daniel1
- Marston, Frank Rutherford1
- Martin, Francis John, Jr.1
- Marvin, Gloria1
- Mathews, John E., Jr., 1920-19881
- May, Philip Stockton1
- McCormick, William T.1