Subjects
- Indians of North America.1
- Korean War, 1950-1953.1
- Labor movement -- United States.1
- Lumber industry.1
- National parks and reserves.1
- New Deal, 1933-1939.1
- Nuclear energy.1
- Offices.1
- Presidents -- United States -- Election -- 1920.1
- Presidents -- United States -- Election -- 1924.1
- Presidents -- United States -- Election -- 1928.1
- Presidents -- United States -- Election -- 1932.1
- Presidents -- United States -- Election -- 1936.1
- Presidents -- United States -- Election -- 1944.1
- Presidents -- United States -- Election -- 1948.1
- Presidents -- United States -- Election -- 1952.1
- Presidents -- United States -- Election -- 1960.1
- Presidents -- United States -- Election -- 1964.1
- Prohibition -- United States.1
- Public lands -- United States.1