REMOVE

1. gelatin silver print
2. National Gallery of Canada
3. 1931

WHAT

1. Photographs (4)
2. gelatin silver print (4)

WHERE

1. North American; American (4)
2. U.S.A.: Massachusetts, Tr … (1)
3. U.S.A.: New York (1)
4. U.S.A.: New York, New Yor … (1)

WHO

1. National Gallery of Canad … (4)
2. Evans, Walker (2)
3. Hine, Lewis W. (2)

WHEN

1. 1919 (1)
2. 1931, printed c. 1938-193 … (1)
3. after 1919, printed befor … (1)