REMOVE

1. Portrait photographs
2. Nitrate negatives
3. negative
4. Children & animals.
5. Genthe, Arnold
6. Library of Congress Prints a …

WHAT

1. Children & animals. (1)
2. Nitrate negatives (1)
3. Photographs (1)
4. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1904 (1)
3. 1938 (1)
4. between 1904 and 1938 (1)