Creator
- Mahon, G. Heyward1
- Maitland, Peter1
- Malen, Paul1
- Manigault, Gabriel E. (Gabriel Edward)1
- Margolis, Elias, 1880-19461
- Markham, Edward, 1877-19501
- Marks, Mord1
- Marx, Lester M.1
- Marx, Moses1
- Mason, D. C.1
- Mason, Noah Morgan, 1882-19651
- Matthews, A. C.1
- Maverick1
- May, Caspar H.1
- Maybank, Burnet R. (Burnet Rhett), 1899-19551
- Maybank, Roberta1
- Mayer, Moritz, 1821-18671
- McArdell1
- McBride, Robert M.1
- McCallum, H. B.1