- Hydroelectric power plants.5
- Icebreakers (Ships)5
- Indians of North America.5
- Infants.5
- International travel.5
- Kendrick, W. Freeland, 1873-1953.5
- Lamb, Thos. W. (Thomas White), 1871-1942.5
- Landis, Kenesaw Mountain, 1866-1944.5
- Manufacturing processes.5
- Market Street (San Francisco, Calif.)5
- Mary, Queen, consort of George V, King of Great Britain, 1867-1953.5
- Masts and rigging.5
- Mauretania (Ship)5
- Mayors.5
- McKee, Joseph V., -19565
- Military funerals.5
- Mines and mineral resources.5
- Models and modelmaking.5
- Modern dance.5
- Motion picture journalists--History.5