July 1939. "Grandson of Negro tenant farmer whose father is in the penitentiary." Granville County, North Carolina. View full size. Medium-format nitrate negative by Dorothea Lange for the Farm Security Administration.

July 1939. Shoofly, North Carolina. "Tobacco field in early morning where white sharecropper and wage laborer are priming tobacco." View full size. Medium format nitrate negative by Dorothea Lange for the Farm Security Administration.

February 1912. Port Royal, South Carolina. "Nine [?] of these children from 8 yrs. old up go to school half a day, and shuck oysters for four hours before school and three hours after on school days, and on Saturday from 4 a.m. to early afternoon. Maggioni Canning Co." View full size. Photo and caption by Lewis Wickes Hine.

October 1939. "Ex-Nebraska farmer now developing farm out of the stumps. Bonner County, Idaho." View full size. Medium-format nitrate negative by Dorothea Lange for the Farm Security Administration.

September 25, 1923. Brigadier General William Mitchell in Washington, D.C. An important figure in the development of military aviation, "Billy" Mitchell is regarded as the father of the U.S. Air Force. His criticism of Army and Navy leaders after the crash of the airship Shenandoah in 1925 led to a court-martial and subsequent resignation. When it came to clothes, cars and horses, he was a connoisseur of the good life. View full size. National Photo Co. Collection.

January 2, 1926. Tommy Leiter and Harriet Mitchell, daughter of Gen. Billy Mitchell. View full size. 5x7 glass negative, National Photo Co. Collection.

Minnesota, 1941. "Complete sanitary privy properly protected to prevent flies from spreading diseases. Concrete floor slab, riser stool and building are fabricated at central yard for environmental sanitation program." View full size. Medium format safety negative by Shipman for the Farm Security Administration.