REMOVE

1. US, IL, Chicago
2. North American; American
3. Callahan%2C Harry
4. 1952

WHAT

1. Horseback riding. (2)
2. Nitrate negatives (2)
3. Photographs (2)
4. negative (2)
5. Portrait photographs (1)

WHO

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

WHEN

1. 1869-1942 (2)
2. 1911 (1)
3. 1936 (2)
4. 1942 (1)
5. between 1911 and 1936 (1)
6. between 1936 and 1942 (1)