Creator
- Macia, Adrian2
- Magoon, Charles Edward, 1861-19202
- Malaret, Blanca1
- Malloch, Archibald, 1887-3
- Malone, Dorotha1
- Mansfelde, A.S. von1
- Marietta, S.M.1
- Marshall, Mary Louise, 1893-2
- Martinez, H. J.1
- Mason, C.F.1
- Matas, Rudolph, 1860-19571
- Maury, R.B.1
- Maxcy, Kenneth F. (Kenneth Fuller), 1889-19662
- Mayer, Willard D.1
- McCaw, Walter D. (Walter Drew), 1863-19391