REMOVE

1. Photographs
2. silver gelatin print
3. Blue collar workers
4. Blue collar workers
5. First half of the twentieth …

WHAT

1. silver gelatin print (1)

WHERE

1. North American; American (1)

WHO

1. Blue collar workers (1)
2. Louisiana State Museum (1)
3. Teunisson, John N. (1)

WHEN

1. 1900 (1)
2. 1949 (1)
3. First half of the twentie … (1)