REMOVE

1. gelatin silver print
2. Photographs
3. people, masquerading
4. architecture, steps
5. portrait, children

WHAT

1. architecture, steps (1)
2. gelatin silver print (1)
3. people, masquerading (1)
4. portrait, children (1)

More 

WHERE

1. North American; American (1)

WHO

1. George Eastman House (1)
2. Meatyard, Ralph Eugene (1)

WHEN

1. 1964 (1)