- Macia, Adrian2
- Mansfelde, A.S. von1
- McCaw, Walter D. (Walter Drew), 1863-19391
- McCutchen, Mary I.S.M.1
- McKnight, Virginia1
- Mead, S.C.1
- Michie, Robert E. Lee2
- Minturn, Robert S.1
- Montgomery, Robert, 1904-19811
- Moran, John J. (John Joseph), 1876-195029
- Morgan, G.E.1
- Morgan, S.S.1
- Morris, Josephine Ames1