REMOVE

1. Portrait photographs
2. negative
3. Nitrate negatives
4. Genthe, Arnold
5. 1926 or 1927

WHAT

1. Group portraits (1)
2. Mothers & children. (1)
3. Nitrate negatives (1)
4. Photographs (1)
5. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1926 (1)
3. 1926 or 1927 (1)