REMOVE

1. pen and ink
2. Editorial cartoons
3. Bulls.
4. World War, 1914-1918.
5. Library of Congress Prints a …

WHAT

1. Airplanes. (1)
2. Bears. (1)
3. Drawings and Watercolors (1)
4. Editorial cartoons (1)

More 

WHO

1. Library of Congress Print … (1)
2. Rogers, W. A. (1)

WHEN

1. 1854-1931 (1)
2. 1915 (1)
3. 1915? (1)