REMOVE

1. Photographs
2. Group portraits
3. Artists.
4. negative

WHAT

1. Group portraits (1)
2. Nitrate negatives (1)
3. 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)