REMOVE

1. autochrome
2. Portrait photographs
3. Autochromes
4. Library of Congress Prints a …
5. between 1906 and 1912

WHAT

1. Children. (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. 1906 (1)
3. 1912 (1)
4. between 1906 and 1912 (1)