- Maverick Mills1
- McCord, Jim Nance1
- McEachin, P. H. (Peter Hector), 1895-19711
- McGee, Elizabeth A., 1930-20021
- McGrath, J. Howard (James Howard), 1903-19661
- McLeod, Yancey A., 1909-19701
- McTeer, Charles W. (Charles William), 1907-19781
- Medal of Honor1
- Medical care1
- Medical supplies1
- Mental health1
- Military government1
- Military pensions1
- Military training camps1
- Military weapons1
- Mitchell, Stephen A. (Stephen Arnold), 1903-19741
- Monday Civic Club (Tacoma, Wash.)1
- Moore, Herman E., 1893-1
- Moral education1
- Motor vehicles1