June 1939. West Carlin, Nevada. "Brakeman on the Union Pacific Challenger." Photo by Dorothea Lange for the Farm Security Administration. View full size.

May 1939. "Farm Security Administration camp at Farmersville, Tulare County, California, for migratory agricultural laborers. Migratory boys come to the clinic for attention of the resident nurse of the Agricultural Workers' Health and Medical Association." 4x5 nitrate negative by Dorothea Lange for the FSA. View full size.

June 1939. Carlin, Nevada. "Brakeman on the Union Pacific Challenger." Photo by Dorothea Lange for the Farm Security Administration. View full size.

October 1939. "Western Pacific line runs through unclaimed desert of northern Oregon. Ten miles from railroad station at Irrigon. Morrow County, Oregon." Photo by Dorothea Lange for the Farm Security Administration. View full size.

October 1939. Gem County, Idaho. "Member of Ola self help sawmill co-op lives in what was once the 'Jackknife Saloon.' This type building is characteristic of early Idaho. The stagecoach used to stop here to change horses and for the refreshment of travelers. This was discontinued in 1914." Medium format nitrate negative by Dorothea Lange for the Farm Security Administration. View full size.

October 1939. "Farmers' supply co-op. Nyssa, Malheur County, Oregon." Photo by Dorothea Lange for the Farm Security Administration. View full size.

October 1939. "Sugar beet factory along Snake River. Shows beet dump, beet pile. Nyssa, Malheur County, Oregon." Medium format negative by Dorothea Lange for the Farm Security Administration. View full size.

May 1939. "Sign near St. David, Cochise County, Arizona." Medium format negative by Dorothea Lange, Farm Security Administration. View full size.

February 1936. "Mission District firetrap. San Francisco, California." 4x5 acetate negative by Dorothea Lange for the Resettlement Administration. View full size.

July 1937. "White sharecropper family, formerly workers in the Gastonia textile mills. When the mills closed down seven years ago, they came to this farm near Hartwell, Georgia." Medium format negative by Dorothea Lange. View full size.

July 1937. "Landless sharecropper families. Sharecropper near Hartwell, Georgia." Photo by Dorothea Lange for the Resettlement Administration. View full size.

February 1936. "Mission District. San Francisco, California." Medium format negative by Dorothea Lange for the Resettlement Administration. View full size.

February 1936. "Lucky Street. Mission District, San Francisco. Rent twenty to twenty-two dollars a month for three or four rooms." Medium format acetate negative by Dorothea Lange for the Resettlement Administration. View full size.

July 1937. "Antebellum plantation house in Greene County, Georgia." 4x5 acetate negative by Dorothea Lange, Farm Security Administration. View full size.

June 1935. "Migrant agricultural workers in California. Motherless migrant children. They work in the cotton." Medium format nitrate negative by Dorothea Lange for the Farm Security Administration. View full size.