On the banks of the Potomac circa 1914. "Summer camps: G. Whiz Canoe Club." 8x6 inch glass negative, National Photo Company Collection. View full size.

July 1942. "Chicago, Illinois. Lake Michigan beach." Medium format acetate negative by Arthur Rothstein for the U.S. Foreign Information Service. View full size.

July 1942. "Pennsylvania Turnpike, Pennsylvania. Rays Hill Tunnel." Abandoned in 1968. Acetate negative by Arthur Rothstein for the Office of War Information. View full size.

July 1942. "Florence, Alabama. Swimming at a Boy Scout camp." Acetate negative by Jack Delano for the U.S. Foreign Information Service. View full size.

July 1942. "Pennsylvania Turnpike. Trucker paying toll." Acetate negative by Arthur Rothstein for the Office of War Information. View full size.

July 1942. "Hoffman Island, merchant marine training center off Staten Island, New York. Class in artificial respiration." Acetate negative by John Vachon. View full size.

July 1942. "Hoffman Island, merchant marine training center off Staten Island, New York. Trainees aboard the training ship New York working in the boiler room." Medium format acetate negative by John Vachon for the U.S. Foreign Information Service. View full size.

Washington, D.C., circa 1919. "Street knife grinder." 5x7 inch glass negative. View full size.

July 13, 1919. Washington, D.C. "Bathing Beauties -- ladies' swimming meet at Tidal Basin bathing beach." 4x6 inch glass negative, National Photo Company Collection. View full size.

July 4, 1919. "Washington's men and women who served during the war gathered at the base of the Washington Monument, receiving medals of honor provided by the citizens of the District of Columbia. The big crowd has just turned to watch a daring aviator circling low above the trees that surround the monument grounds." National Photo glass negative. View full size.

April 1943. "Airman on wing of B-24 bomber at U.S. Army 9th Air Force base somewhere in Libya." Nitrate negative by Nick Parrino for the Office of War Information. View full size.

December 1940. "Construction of Army training camps around Alexandria, Louisiana. East Side Cafe with rooms for rent, 'Soldiers Welcome,' on highway to Camp Livingston." Acetate negative by Marion Post Wolcott for the Farm Security Administration. View full size.

1908. "High School -- Atlantic City, New Jersey." At the corner of Pacific and South Ohio Avenues. 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

March 13, 1936. Washington, D.C. "Man and woman disembarking from train." 4x5 inch glass negative, Harris & Ewing Collection. View full size. Washington Post, March 14, 1936:

Arriving for Week at Loew's Fox

        Arriving in the Capital early yesterday morning, Jack Benny and Mary Livingstone -- Mrs. Benny in private life -- were met and breakfasted by a group of Loew's executives and newspaper representatives. Mr. and Mrs. Benny are here for a week of personal appearances, in conjunction with an elaborate stage revue, at Loew's Fox Theater. Mr. Benny's Sunday night broadcast will be made from the auditorium of the National Press Club ...

New York, 1903. "Columbia University and the Hudson River." 8x10 inch dry plate glass negative, Detroit Photographic Company. View full size.