- Griffith Stadium (Washington, D.C.)1
- Heads of state.1
- La Guardia, Fiorello H. (Fiorello Henry), 1882-1947.1
- Lexington Class (Aircraft carriers)1
- LeĢopold III, King of the Belgians, 1901-1983.1
- Locks (Hydraulic engineering)1
- Major League Baseball (Organization)--History--20th century.1
- Markham, Edwin, 1852-1940.1
- Mary, Queen, consort of George V, King of Great Britain, 1867-1953.1
- Max, Adolphe, 1869-1939.1
- Military.1
- Mix, Tom, 1880-1940.1
- Motion picture actors and actresses.1
- Motion picture journalism--United States--History.1
- Motion picture journalists.1
- Natural disasters.1
- New Deal, 1933-1939.1
- Newport News Shipbuilding and Dry Dock Company.1
- Panama Canal (Panama)--Description and travel.1
- Parades--England.1