Place
- Lotteries - United States1
- M. Magdalena Schoch (1897-1987)1
- Mail-order sound recording industry1
- Maltese, Serphin R.1
- Meginnei, David1
- Menands (N.Y.)1
- Mennillo, David J., 1918-20041
- Metcalf, George R., 1914-20021
- Meteorology1
- Mexico--Photographs1
- Minnesota--Chisholm1
- Mount Greylock (Mass.)1
- Mount Washington (N.H.)1
- Mount Withington (N.M.)1
- Nassau County (N.Y.)1
- New York1
- New York (N.Y.)--Photographs1
- New York (State)--20th century1
- New York (State)--Elections1
- New York (State)--Labour Council1