"Wilson in Automobile." The former president in 1923, the year before his death. View full size. 4x5 glass negative, National Photo Company Collection.

January 1943. Calumet City, Illinois. Indiana Harbor Belt Railroad switchman demonstrating signal with a fusee, used at twilight and dawn, when visibility is poor. This signal means "go ahead." View full size. Caption and 4x5 Kodachrome transparency by Jack Delano for the Office of War Information.

February 1939. Calipatria, Imperial Valley, California. "Idle pea pickers discuss prospects for work." View full size. Medium-format nitrate negative by Dorothea Lange for the Farm Security Administration.

Bethlehem-Fairfield Shipyards, Baltimore. 1941. "Between the ways of this large Eastern shipyard run tracks for flatcars carrying materials or sections to be hoisted onto the deck of Liberty ships under construction." View full size. Medium format nitrate negative by Alfred Palmer.

Golfer Phillips Finlay at the Chevy Chase Club in 1929. View full size. 4x5 inch glass negative from the National Photo Company Collection.

"Catholic University Track Meet, 1928." View full size. National Photo Co.

"First Women's Fire Department." At the 1929 Firemen's Labor Day Parade in Washington, D.C. View full size. National Photo Company Collection.

October 1942. Inglewood, California. "Young woman employee of North American Aviation working over the landing gear mechanism of a P-51 fighter plane." View full size. 4x5 Kodachrome transparency by Alfred Palmer.

Summer 1923. Vicinity of Washington, D.C. "Boys carrying loaves of bread from wagons near beach." View full size. National Photo Company Collection.

September 1911. Lawrence, Massachusetts. "Group of workers. The small boy in the middle is Secondino Libro, 34 Walnut Street. Apparently 10 or 11. Works in No. 4 Spinning room." View full size. Photo and caption by Lewis Wickes Hine.

October 2, 1923. Another shot of those Danish athletes at the Pension Building in Washington, D.C. View full size. National Photo Company Collection.

1923. Washington, D.C. "F. Thorndyke." View full size. National Photo Co.

1926. Washington, D.C. Photographing the photographing of giraffes at the National Zoo. View full size. 4x5 glass negative, National Photo Company.

November 10, 1922. "Girls' rifle team." View full size. National Photo Co.

February 1939. Calipatria, Imperial Valley. Car on siding across tracks from pea packing plant. Twenty-five year old itinerant, originally from Oregon. "On the road eight years, all over the country, every state in the union, back and forth, pick up a job here and there, traveling all the time." View full size. Medium format nitrate negative by Dorothea Lange for the Farm Security Administration.