REMOVE

1. Nitrate negatives
2. negative
3. Group portraits
4. Library of Congress Prints a …
5. between 1906 and 1914

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. 1906 (1)
3. 1914 (1)
4. between 1906 and 1914 (1)