August 1939. Three of the four Arnold children outside their farmhouse at Michigan Hill. The oldest boy earned the money to buy his bicycle. Thurston County, western Washington. View full size. Photograph by Dorothea Lange.

July 1939, Person County, North Carolina. Wife and child of tobacco sharecropper. The littlest girl comes in from outside for something to eat while Mother is doing her housework. The child next to the baby is called in this country the "knee baby." View full size. Photograph by Dorothea Lange.

August 1939. Migratory children living in "Ramblers Park." They have lived on the road for three years. Nine children in the family. Yakima Valley, Washington. View full size. Photograph by Dorothea Lange.

Coldwater District north of Dalhart, Texas. This house is occupied; most of the houses here have been abandoned. View full size. Photo by Dorothea Lange.

October 1939. Baby from Mississippi in truck at the Farm Security Administration camp at Merrill, Oregon. View full size. Photograph by Dorothea Lange.

August 1939. Marion County, Oregon, near West Stayton. Children in large private bean pickers' camp. The pickers came from many states, from Oklahoma to North Dakota. View full size. Photograph by Dorothea Lange.

August 1939. Yakima Valley near Wapato, Washington. Farm Security Administration client Chris Adolph. "My father made me work. That was his mistake, he made me work too hard. I learned about farming but nothing out of the books." View full size. Photograph by Dorothea Lange.

Today, the first installment of another selection of photos by Dorothea Lange of Midwesterners en route from the drought-stricken farms of the 1930s Dust Bowl to California, Oregon, Washington and the South. The captions are hers.