- United States. Army.4
- United States. National Recovery Administration.4
- Washington Post4
- Wilbur, Curtis Dwight, 1867-1954.4
- World War, 1914-1918.4
- Adams, Charles F. (Charles Francis), 1866-1954.3
- Aerial cinematography.3
- Aeronautics--Records.3
- Agriculture--Economic aspects.3
- Agriculture--United States.3
- Air mail service.3
- Alcohol.3
- Alcoholic beverages.3
- Armistice Day.3
- Baker, Newton Diehl, 1871-1937.3
- Bands (Music)3
- Bills, Legislative.3
- Biplanes--Piloting.3
- Birth Weight, Low3
- Brown, Walter F. (Walter Folger), 1869-1961.3