REMOVE

1. silver gelatin print
2. Photographs
3. silver gelatin print
4. Racetracks (Horse racing) …
5. First half of the twentieth …
6. 1949

WHAT

1. silver gelatin print (1)

WHERE

1. New Orleans (La.) (1)
2. North American; American (1)

WHO

1. Louisiana State Museum (1)
2. Racetracks (Horse racing) (1)
3. Teunisson, John N. (1)

WHEN

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