REMOVE

1. Submarines
2. Library of Congress Prints a …
3. Rogers, W. A.
4. Library of Congress Prints a …
5. 1915?

WHAT

1. Defense industry. (1)
2. Drawings and Watercolors (1)
3. Editorial cartoons (1)
4. Military officers (1)
5. pen and ink (1)
6. World War, 1914-1918. (1)

WHO

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

WHEN

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