科羅拉多州席爾佛頓的礦工與他們的小孩一同慶祝勞工節

出處: Lee, Russell, photographer. "Miners with Their Children at the Labor Day Celebration, Silverton, Colorado." September 1940. America from the Great Depression to World War II: Black-and-White Photographs from the FSA-OWI, 1935-1945, American Memory collections, Library of Congress