Information about this photo is a bit cryptic; apparently it was taken on July 7, 1926 after Congress failed to appropriate any money for the public swimming pools in Washington DC and the overheated urchins started swimming in the public water fountains and reflecting pools. Photographer unknown. 

Nearly all of these urchins were discovered in the photography archives of the Library of Congress (and available without copyright restrictions online). Otherwise, urchin photos will be credited to the appropriate photographer with a link to its source (unless they come from my own collection of photographs from unknown photographers). If there is ever a copyright concern, do not hesitate to contact me.