| Lewis W. Hine Happy but thoughtless. The messenger service is poor training for him. (Works for Dime Messenger Service). Location: [Washington (D.C.), District of Columbia [National Child Labor Committee (U.S.)] 1912, April Photographic print Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-nclc-03791 (color digital file from b&w original print) LL/39713
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