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Labor Day poster distributed to war plants and labor organizations: Anton Bruehl, August 1942

Labor Day, Greendale, Wisconsin: photo by John Vachon, September 1939

Park scene, Labor Day, Milwaukee, Wisconsin: photo by John Vachon, September 1939

Spectators at Labor Day parade in Du Bois, Pennsylvania: photo by Jack Delano, September 1940

Labor Day parade at Du Bois, Pennsylvania: photo by Jack Delano, September 1940

Spectators and theatre at Labor Day parade in Du Bois, Pennsylvania: photo by Jack Delano, September 1940

Spectators at Labor Day parade in Du Bois, Pennsylvania: photo by Jack Delano, September 1940

Detroit, Michigan. Ford workers carrying flag and banners in the Labor Day parade: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Local 600 of the Congress of Industrial Organizations (CIO); electrical workers electrocuting Hitler in the Labor Day parade: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Outhouse and clown at Labor Day parade with plea for buying of war bonds: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Women workers parading in the Labor Day parade: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Float in the Labor Day parade showing Uncle Sam as a huge blacksmith: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Murray Local Number Two of the Congress of Industrial Organizations (CIO) float in the Labor Day parade illustrating "Wings of the Victory" depending on air power: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Spectators at the Labor Day parade: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Float in the Labor Day parade showing relationship between the Army, Red Cross and industrial workers: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Workers' wives and children watching the Labor Day parade: photo by Arthur S. Siegel, September 1942

Detroit, Michigan. Little girl carrying American flag in the Labor Day parade: photo by Arthur S. Siegel, September 1942
Photos from Farm Security Administration/Office of War Information Collection, Library of Congress