REMOVE

1. Photographs
2. Nitrate negatives
3. Steamboats.
4. Genthe, Arnold
5. Library of Congress Prints a …
6. between 1920 and 1926

WHAT

1. Cities & towns. (1)
2. Nitrate negatives (1)
3. negative (1)

WHO

1. Genthe, Arnold (1)
2. Library of Congress Print … (1)

WHEN

1. 1869-1942 (1)
2. 1920 (1)
3. 1926 (1)
4. between 1920 and 1926 (1)