A tap dancing class in the gymnasium at Iowa State College in Ames, Iowa. Photo by Jack Delano, 1942. View full size.

A woman sitting on a wall looks at the mountains behind her. The image is by fashion photographer Toni Frissell and was published in Harper's Bazaar in February 1947. View full size.

"Young fellows in front of pool hall," in Jackson, Ohio. Photo by Theodor Jung, 1936. View full size.

A photo of William Grass on the starting line. National Photo Company, 1922. View full size.

This picture shows the "Four Novelty Grahams" acrobatic performers at the Victoria Theatre, Philadelphia. The father is 23 years of age. Willie Graham is 5 years of age, and Herbert Graham is 3 years of age. At 9 P.M. on June 10th, 1910, these children were performing on the stage. Four times daily they do a turn which lasts from 12 to 14 minutes. Herbert Graham, the youngest, was said by the father to have commenced performing on the stage as an acrobat when he was 10 months of age. Willie, now 5, is said to be the youngest acrobat in the world. The mother of these boys was formerly a school teacher, and is now performing with this trio on the stage. The children are bright and strong, but have a playfulness about them which shows them to have forgotten the best years of childhood. Photo by Lewis W. Hine, 1910. View full size.

June 1938. Nettie Featherston, laborer's wife with three children near Childress, Texas. "I just prayed and prayed and prayed all the time that God would take care of us and not let my children starve." View full size | Audio interview.

June 1938. Nettie Featherston, wife of a migratory laborer with three children. Near Childress, Texas. "If you die, you're dead – that's all." View full size. Photo: Dorothea Lange. Bio of Nettie (1898-1984) and audio interview.