REMOVE

1. California poppies.
2. autochrome
3. Autochromes
4. Landscape photographs
5. Library of Congress Prints a …
6. between 1906 and 1911

WHAT

1. California poppies. (1)
2. Landscape photographs (1)
3. Photographs (1)

WHO

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

WHEN

1. 1869-1942 (1)
2. 1906 (1)
3. 1911 (1)
4. between 1906 and 1911 (1)