Chicago, April 1943. "Caboose on the caboose track at the Chicago & North Western RR Proviso Yard." View full size. 4x5 Kodachrome transparency by Jack Delano for the Office of War Information.

Washington, D.C., 1922. "Rail guard." View full size. National Photo Company.

Washington, D.C., vicinity circa 1928. "Southern Railway. Ladies' car," reserved for women and their escorts. National Photo glass negative. View full size.

Washington, D.C., circa 1920. "Union Station, tracks in rear." National Photo Company Collection glass negative, Library of Congress. View full size.

Washington, D.C., 1921 or 1922. "Union Station waiting room." National Photo Company Collection glass negative. View full size.

Washington, D.C. "Trolley line on Connecticut Avenue north from Grant Road." 1921 or 1922. View full size. National Photo Company Collection glass negative.

"Union Station concourse, 1921." View full size. National Photo glass negative.

Workers on the tracks at Union Station in Washington on a winter day circa 1920. View full size. National Photo Company Collection glass negative.

"Dome Oil Co., Takoma Park." In Maryland in 1921, a gritty diorama of the Petroleum Age. View full size. National Photo Company glass negative.

Washington, D.C. "Union Station concourse. 1921 or 1922." I count at least six people in this time exposure. View full size. National Photo glass negative.

Washington, D.C., or vicinity circa 1926. "Southern R.R. Co. Crescent Locomotive 1396." View full size. National Photo Company Collection glass negative.

Washington, D.C., circa 1920s. "Union Station signals and tracks." National Photo Company Collection glass negative, Library of Congress. View full size.

May 25, 1864. "North Anna River, Virginia. Destroyed bridge of the Richmond & Fredericksburg Railroad." Wet plate glass negative, left half of stereo pair, by Timothy H. O'Sullivan. Library of Congress. View full size.

May 1943. Peso-brandishing beet harvesters brought north from Mexico by the Farm Security Administration during World War 2. View full size. OWI photo.

May 1943. More Mexican sugar-beet pickers headed north. "Mexican workers recruited and brought to the Arkansas valley, Colorado, Nebraska and Minnesota by the FSA to harvest sugar beets." View full size. Office of War Information.