REMOVE

1. International relations.
2. pen and ink
3. Cactus.
4. Uncle Sam (Nickname)
5. Editorial cartoons
6. Library of Congress Prints a …

WHAT

1. Drawings and Watercolors (1)
2. Editorial cartoons (1)
3. International relations. (1)
4. Uncle Sam (Nickname) (1)

More 

WHO

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

WHEN

1. 1854-1931 (1)
2. 1916 (1)
3. 1916? (1)