August 1941. "Moving railroad track in the Mahoning pit. Hibbing, Minnesota." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

December 24, 1941. Washington, D.C. "Greyhound bus terminal on the day before Christmas. Waiting to board the bus to Richmond." Acetate negative by John Vachon. View full size.

August 1941. "Member of blasting crew at Danube Mine near Bovey, Minnesota." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

February 1942. Newton County, Missouri. "Boom area on U.S. Highway #71 around Camp Crowder. Housing for construction workers." Acetate negative by John Vachon. View full size.

August 1941. "Children of old Hibbing, Minnesota, the part of town which is gradually being torn down as mining operations expand, sell pieces of ore and iron range souvenirs to tourists." Acetate negative by John Vachon for the Farm Security Administration. View full size.

August 1941. "Hull-Rust-Mahoning, world's largest open pit iron mine, near Hibbing, Minnesota." Medium format acetate negative by John Vachon. View full size.

February 1940. "Dance hall, Saturday night. Marshalltown, Iowa." Medium format acetate negative by Arthur Rothstein for the Farm Security Administration. View full size.

February 1940. "Main street (G Avenue) in Grundy Center, Iowa." Medium format acetate negative by Arthur Rothstein for the Farm Security Administration. View full size.

November 1939. "Privy. Dawes County, Nebraska." Medium format acetate negative by Arthur Rothstein for the Farm Security Administration. View full size.

January 1941. Midland, Pennsylvania. "Backyards of company houses and steel mill." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

January 1941. "Rochester, Pennsylvania. Ohio River town." Continuing the vista last seen here. Medium format negative by John Vachon for the Farm Security Administration. View full size.

January 1941. "Jones and Laughlin Steel Company. Beehive coke ovens. Aliquippa, Pennsylvania." Medium format acetate negative by John Vachon. View full size.

December 1940. "Christmas shopping crowds. Gadsden, Alabama." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

June 1938. "New Mexico desert. Highway No. 70. The route many refugees cross." Medium format negative by Dorothea Lange for the Farm Security Administration. View full size.

May 1937. "Children of migrant cotton field workers from Sweetwater, Oklahoma. Eight children in the family. Note the housing. Near Casa Grande project, Arizona." Medium format acetate negative by Dorothea Lange for the Farm Security Administration. View full size.