African-Americans
Agriculture
Airplanes and Air Travel
Allegory, Myth, Symbolic Figures
Animals--Farm and Pets
Arts
Avant-garde Style, "Modern Art"
Boats and Ferries
Business and Commerce
City Life
Commerce
Compositions around the Postmaster's Door
Construction
Decoration and Abstraction
Education
Exotic Lands
Exploration and Discovery
Fishing and Hunting
For Children
Government
Great Men and Women
History--Local and Regional
History--National and World
Home and Family Life
Horses
Immigration
Indians
Industry and Manufacturing
Invention and Discovery
Landscapes and City Vistas
Literary Themes
Local Sights and Landmarks
Lumber, Logging, Mining
Mail Delivery and Letter-writing
Maps
Nature
People at Work
People of Many Lands
Pioneers and Settlers
Ranching and Cowboys
Recreation
Sea and Nautical
Small-town Life
Social Protest
Technology, Science, Medicine
The Railroad
Transportation
Warriors and Battles
Wildlife
Women at Work
Youth