A hobo jungle along the riverfront in St. Louis, Missouri. March 1936. Medium format nitrate negative by Arthur Rothstein. View full size.

Re-tiring a locomotive driver wheel in the Atchison, Topeka, & Santa Fe railway shops at Shopton, near Fort Madison, Iowa. March 1943. View full size. 4x5 Kodachrome transparency by Jack Delano.

Magazine and cannonballs at Battery Rodgers, Alexandria, defending Washington during the Civil War, circa 1863. View full size. Half of stereograph pair.

Boston Nationals shortstop Walter "Rabbit" Maranville, twenty-one years old. April 12, 1913. View full size. George Grantham Bain Collection.

Baby girl of family living on Natchez Trace Project, near Lexington, Tennessee. March 1936. View full size. Photograph by Carl Mydans.

Children playing with Campbell Kid dolls. New York City, March 1912. View full size. Photograph by Lewis Wickes Hine.

"Durward Nickerson, Western Union messenger #55. Birmingham, Alabama. 18 years old. Lives in Bessemer, R.F.D. #1. Saturday night, Sept. 26, 1914, he took investigator through the old Red Light on Avenue A, pointed out the various resorts, told about the inmates he has known there. Only a half dozen of them were open now. Durward has put in two years in messenger work and shows the results of temptations open to him. He has recently returned from a hobo trip through 25 states. He was not inclined to tell much about the shady side of messenger work, but one could easily see that he has been through much that he might have avoided in a profitable kind of work." View full size. Photo by Lewis Wickes Hine.