Names
- Miller, Clyde R., 1888-1
- Moehlman, Conrad Henry, 1879-1
- Monroney, Aimer Stillwell (Mike), 1902-1
- Monroney, Mike, 1902-1
- Moore, Hugh, 1887-1972.1
- Muller, H. J. (Hermann Joseph), 1890-1967.1
- Muller, Hermann Joseph, 1890-1967.1
- Muste, Abraham John, 1885-1967.1
- Nader, Ralph, 1934-1
- National Association for the Advancement of Colored People.1
- National Council on Freedom From Censorship.1
- National Urban League.1
- Neuberger, Maurine B. (Maurine Brown), 1907-2000.1
- Neuberger, Maurine Brown, 1907-1
- New York (N.Y.). City Affairs Committee.1
- New York (N.Y.). Dept. of Investigation.1
- Non-Partisan Committee for Harry W. Laidler for City Council.1
- Novy, Frederick George, 1864-1957.1
- O'Dwyer, William, 1890-1964.1
- O'Gara, James Vincent, 1918-1