REMOVE

1. Nitrate negatives
2. negative
3. Weddings.
4. Group portraits
5. Library of Congress Prints a …
6. 1911

WHAT

1. Group portraits (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. 1942 (1)
3. between 1911 and 1942 (1)