REMOVE

1. gelatin silver print
2. Photographs
3. occupation, prison guards
4. people, naked
5. interior, cell block
6. event, prison shakedown

WHAT

1. event, prison shakedown (1)
2. gelatin silver print (1)
3. interior, cell block (1)
4. occupation, prison guards (1)

More 

WHERE

1. North American; American (1)
2. US, TX (1)

WHO

1. George Eastman House (1)
2. Lyon, Danny (1)

WHEN

1. 1967 (1)
2. 1968 (1)
3. ca. 1967-68 (1)