- Marriott, H. L. (Hugh Leslie), 1900-19831
- McCarthy, Charles L.1
- Metcalf, Harold, author1
- Mihalich, Joseph J., author1
- Mills, A. K., author1
- Minnesota. Office of Civil Defense, author1
- Misonō, Keisuke, 1912-1995, author1
- Mjölnir, 1901-1980, artist1
- Molnar, G. W. (George W.)1
- Morgan, Edward J., author1
- Mountin, Joseph W. (Joseph Walter), 1891-19521
- Mulrennan, John A., author1
- Munn, James F., author1
- Münch-Khe, W. (Willi), 1885-1960, artist1
- National Research Council (U.S.). Committee on Artificial Limbs, author, issuing body.1
- National Research Council (U.S.). Committee on Information. Subcommittee on Historical Records, author.1
- National Research Council (U.S.). Committee on Prosthetic Devices, author.1
- National Research Council (U.S.). Subcommittee on Oxygen and Anoxia, author, issuing body.1
- Neel, James V. (James Van Gundia), 1915-2000, author1
- New York (State). Temporary Legislative Commission to Formulate a Long Range State Health Program, author.1