REMOVE

1. Photographs
2. Portrait photographs
3. Nitrate negatives
4. negative
5. between 1934 and 1942
6. between 1934 and 1942

WHAT

1. Artists. (1)
2. Group portraits (1)
3. Nitrate negatives (1)
4. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1934 (1)
3. 1942 (1)
4. between 1934 and 1942 (1)