“Alonzo Bankston is a furnace operator in the TVA plan producing carbide for use in plants manufacturing synthetic rubber, 1941–45”. (Photo by an unknown photographer)

“Testing the subsurface-Drilling with diamond drills, Boise”. Irrigation Project, Idaho and Oregon, August 1910. (Photo by Walter Lubken)

“Some of the colored men of the 369th (15th N.Y.) who won the Croix de Guerre for gallantry in action, 1919”. Left to right. Front row: Pvt. Ed Williams, Herbert Taylor, Pvt. Leon Fraitor, Pvt. Ralph Hawkins. Back Row: Sgt. H. D. Prinas, Sgt. Dan Strorms, Pvt. Joe Williams, Pvt. Alfred Hanley, and Cpl. T. W. Taylor. (Photo by an unknown photographer)

“Boy against a yellow platform at the Kosciusko Swimming Pool in the Bedford-Stuyvesant District of Brooklyn in New York City” New York, New York, July 1974. (Photo by Danny Lyon)

“Farmer reading his farm paper”. Coryell County, Texas, September 1931. (Photo by George W. Ackerman)

“Flag Making”. Brooklyn, New York, July 24, 1940. (Photo by Margaret Bourke-White)

“Mr. and Mrs. Hoover paid a visit to President and Mrs. Coolidge at the Summer White House”, July 18, 1928. (Photo by an unkown photographer)

“Hancock homestead, July 23, 1910. Settler from Benson, Minn. Sun River project, Montana”. (Photo by Walter Lubken)

“Grand Canyon from South Rim, 1941, Arizona”. (Photo by Ansel Adams)

“Immigrant children, Ellis Island, New York, 1908”. (Photo by Brown Brothers)

“When immigrant labor was cheap, some coal companies took the view that miners were easy to replace. Today, as this sign indicates, the health and safety of miners have become important concerns in the coalfields”. Pike County, Kentucky, 1979. (Photo by Nan E. Elliot)

“Farmer and his son listening in the evenings, Shawnee county, Kansas, September 23 or 24, 1924”. (Photo by George W. Ackerman)

“President John F. Kennedy viewing astronaut John Glenn's space capsule, Friendship 7”. February 23, 1962. (Photo by Cecil Stoughton)

“Two Latin girls pose in front of a wall of graffiti in Lynch Park in Brooklyn, New York City, June 1974”. (Photo by Danny Lyon)

“President Lyndon Johnson awards a medal to a wounded U.S. serviceman in Cam Rahn Bay, South Vietnam, October 26, 1966”. (Photo by Yoichi Okamoto)

“President Lyndon Johnson with Senator Richard Russell at the White House, December 7, 1963, Washington, DC.”. (Photo by Yoichi Okamoto)

“Manzanar Relocation Center, Manzanar, California, July 2, 1942. Grandfather and grandson of Japanese ancestry at the War Relocation Authority center”. (Photo by Dorothea Lange)

“Children and Sugar Beets”. Hall County, Nebraska, October 17, 1940. (Photo by L. C. Harmon)

“Da Nang, Vietnam. A young Marine private waits on the beach during the Marine landing, August 3, 1965”. (Photo by an unknown photographer)

“Power house mechanic working on steam pump, 1920”. (Photo by Lewis Hine)

“Young migratory mother, originally from Texas” Edison, Kern. County, California, April 11, 1940. (Photo by Dorothea Lange)

“Wright Aeroplane, Ft. Myer, VA. Orville Wright in plane, September 1908”. (Photo by an unknown photographer)

“Old-timer, – keeping up with the boys. Many structural workers are above middle-age. New York City, Empire State Building, 1930”. (Photo by Lewis Hine)

“Pedestrians on the upper deck promenade of Brooklyn Bridge, 1910”. (Photo by an unknown photographer)

“Pvt. J.B. Slagle, USA, receives his daily dressing of wounds on board USS SOLACE enroute from Okinawa to Guam, May 1945”. (Photo by Lt. Victor Jorgensen)

“American servicemen and women gather in front of “Rainbow Corner”. Red Cross club in Paris to celebrate the unconditional surrender of the Japanese”. (Photo by an unknown photographer)

“President Reagan speaking at a rally for Senator Durenberger, February 8, 1982”. (Photo by Michael Evans)

“President Ronald Reagan riding his horse El Alamein at Rancho Del Cielo, April 8, 1986”. (Photo by Pete Souza)

“Franklin D. Roosevelt and Winston Churchill at the presidential retreat Shangri, La”. May 14, 1943. (Photo by an unknown photographer)

“Starving inmate of Camp Gusen, Austria". May 12, 1945. (Photo by Sam Gilbert)

“Scenes of the Space Shuttle Challenger taken with a 70mm camera onboard the shuttle pallet satellite (SPAS-01)”. June 22, 1983. (Photo by a Challenger crew member)

“The Sam McCall family of Wilcox County, Alabama”, 1910. (Photo by M. A. Crosby)

“Sweeper and doffer boys in Lancaster Cotton Mills, December 1, 1908”. (Photo by Lewis Hine)

“The Tetons–Snake River” Wyoming, 1942. (Photo by Ansel Adams)

“Lunch time at the Vega aircraft plant, Burbank, California. A quartet of girl workers, August 1943”. (Photo by Charles Fenno Jacobs)

“Tired member of VF-17 pauses under the squadron scoreboard at Bouganville”, February 1944. (Photo by Charles Fenno Jacobs)

“White Angel Breadline”. San Francisco, California, winter 1933–34. (Photo by Dorothea Lange)

“Women Rivet Heaters and Passers on”. Puget Sound Navy Yard, Washington, May 29, 1919. (Photo by an unknown photographer)