REMOVE

1. Photographs
2. Glass negatives
3. Portrait photographs
4. Library of Congress Prints a …
5. 1917
6. between 1917 and 1920

WHAT

1. Glass negatives (1)
2. Portrait photographs (1)
3. negative (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1920 (1)
3. between 1917 and 1920 (1)