January 1941. "Steelworker and family. Aliquippa, Pennsylvania." Medium format negative by John Vachon for the Farm Security Administration. View full size.

Washington, D.C., circa 1920. "Crowds at Metropolitan Theatre, F Street N.W." National Photo Company Collection glass negative. View full size.

Philadelphia circa 1909. "Valley Green, Fairmount Park." Back in the day, less green than gray. 8x10 glass negative, Detroit Publishing Co. View full size.

Circa 1906. "City Hall, Louisville, Kentucky." Our second look at this imposing edifice. 8x10 inch glass negative, Detroit Publishing Company. View full size.

New York, May 1943. "A Harlem street scene." Medium-format nitrate negative by Gordon Parks for the Office of War Information. View full size.

April 1943. San Augustine, Texas. "A man going to the livestock auction." Safety negative by John Vachon for the Office of War Information. View full size.

New York, May 1943. "Pushcart fruit vendor at the Fulton Fish Market." Photo by Gordon Parks for the Office of War Information. View full size.

July 1943. "Examining meat in a wholesale meat market. A reconstruction photographed during the filming of Black Marketing, a motion picture produced by the U.S. Office of War Information." Photo by Roger Smith. View full size.

July 1942. Washington, D.C. "Spectators at a baseball game: wives, sweethearts and children of the players; passersby and regular fans." Medium-format nitrate negative by Marjory Collins for the Office of War Information. View full size.

October 1939. "The Free children in doorway of their dugout home in Sunday clothes. Dead Ox Flat, Malheur County, Oregon." Medium format nitrate negative by Dorothea Lange for the Farm Security Administration. View full size.

Philadelphia circa 1909. "Girard Trust Company." 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

Circa 1900. "Union Station, Nashville, Tennessee." 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

Gloucester, Massachusetts, circa 1906. "The Oceanside and tennis courts, Magnolia, Mass." 8x10 glass negative, Detroit Publishing Co. View full size.

Circa 1906. "Railroad station, Magnolia, Massachusetts." Multi-modal transportation. 8x10 glass negative, Detroit Publishing Co. View full size.

New York, November 25, 1913. "Mullins & Sullivan." West Point football players Charles Love Mullins Jr. and Joseph Pescia Sullivan, future major generals from the Class of 1917. 5x7 glass negative, Bain News Service. View full size.