REMOVE

1. Portrait photographs
2. Dancers.
3. Library of Congress Prints a …
4. Genthe, Arnold
5. between 1918 and 1920
6. 1918

WHAT

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

WHO

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

WHEN

1. 1869-1942 (2)
2. 1920 (2)
3. between 1918 and 1920 (2)