REMOVE

1. Photographs
2. gelatin silver print
3. study, tree
4. North American; American
5. Callahan, Harry

WHAT

1. gelatin silver print (2)
2. study, tree (2)
3. architecture, urban (1)

WHERE

1. North American; American (2)
2. Peru, Cuzco (1)
3. US, IL, Chicago (1)

WHO

1. Callahan, Harry (2)
2. George Eastman House (2)

WHEN

1. 1956 (1)
2. 1974 (1)