REMOVE

1. National parks & reserves.
2. Snow.
3. negative
4. Library of Congress Prints a …
5. between 1903 and 1906
6. 1903

WHAT

1. Nitrate negatives (1)
2. Photographs (1)
3. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1920 (1)
3. 1928 (1)
4. between 1920 and 1928 (1)