December 20, 1909. "Boys working in Arcade Bowling Alley, Trenton, New Jersey. Photo taken late at night. The boys work until midnight and later." Photograph and caption by Lewis Wickes Hine. View full size.

October 1938. Factory workers' homes in Camden, New Jersey. View full size. 35mm nitrate negative by Arthur Rothstein, Farm Security Administration.

"Clean Up Day" at the Deadwood Terra Gold Stamp Mill near Terraville in the Dakota Territory. Ore fed into the mill is stamped, or crushed, to prepare it for the chemical extraction of gold. Photograph by John C.H. Grabill. View full size.

Children play in a wading pool at a play center at the Red Hook housing development, Brooklyn, New York. The charge to use the pool is nine cents for children, 25 cents for adults. Photograpy by Arthur Rothstein, June, 1942. View full size.

1923. Swimmers at the Wardman Park Hotel pool in Washington, D.C. National Photo Company Collection glass negative. View full size.

A poster for the Federal Theatre Project presentation of "Gaieties of 1936" at the Greek Open Air Theatre, Vermont Avenue at Griffith Park in Los Angeles. View full size

Children asleep on a bed during a square dance in McIntosh County, Oklahoma. Photograph by Russell Lee for the Farm Security Administration Office of War Information, c. 1939. View full size.