July 1939. Granville County, North Carolina. "Country filling station owned and operated by tobacco farmer. Such small independent stations have become meeting places and loafing spots for neighborhood farmers in their off times." Photo by Dorothea Lange for the Farm Security Administration. View full size.

April 1939. "Salvation Army, San Francisco, California. At Minna Street the army forms a semicircle, girls' Sunday school class sings between preaching to attract a crowd." Medium format negative by Dorothea Lange. View full size.

October 1939. "Five Idaho farmers, members of Ola self-help sawmill co-op, in the woods standing against a load of logs ready to go down to their mill about three miles away. Gem County, Idaho." Photo by Dorothea Lange. View full size.

February 1937. "Missouri family of five, seven months from the drought area. 'Broke, baby sick, car trouble.' U.S. 99 near Tracy, California." Last seen here. Photo by Dorothea Lange for the Resettlement Administration. View full size.

May 1937. "One of three related Oklahoma drought refugee families on the highway near Lordsburg, New Mexico, going to Roswell to chop cotton." Photo by Dorothea Lange for the Resettlement Administration. View full size.

Spring 1937. "This family without food and work about to be returned to Oklahoma by the Relief Administration. They have lost a baby as a result of exposure during the winter. Had to sell their tent and car to buy food. Neideffer Camp, Holtville, Imperial Valley, California." Photo by Dorothea Lange for the Resettlement Administration. View full size.

July 1939. "Mr. Whitfield, tobacco sharecropper, with baby on front porch. North Carolina, Person County, near Gordonton." Happy Father's Day from Shorpy! Photo by Dorothea Lange for the Resettlement Administration. View full size.

November 1938. "Visalia (vicinity), Tulare County, California. Miners' cooperative farm. Ten families have been established on the old ranch of 500 acres, which they operate as a farm unit, raising cotton, alfalfa and dairy products for cash crops." Photo by Dorothea Lange for the Farm Security Administration. View full size.

June 1937. "Mississippi grocery store." Another of Dorothea Lange's quirky-sign photos. Resettlement Administration nitrate negative. View full size.

June 1938. "She awaits the international streetcar at a corner in El Paso, Texas, to return across the bridge to Mexico." Photo by Dorothea Lange. View full size.

August 1939. Josephine County, Oregon. "New sign, erected seven years after Howard Scott talked of a survey of North America and formation of 'energy units,' which had widespread vogue in the early years of Depression." Another of Dorothea Lange's quirky-sign photos. View full size.

July 1936. "Gas station road sign near Perry, Georgia." Photo by Dorothea Lange, connoisseur of the silly sign and benighted billboard. View full size.

July 1937. "Georgia road sign." Photo by Dorothea Lange, who seems to have appreciated quirky signs. More to come later in the week. View full size.

March 1937. "Migrant children from Oklahoma on California highway." Photo by Dorothea Lange for the Farm Security Administration. View full size.

October 1939. "On U.S. 99 as it continues through Oregon. Lane County, Williamette Valley." Back in the day, this doggy sandwich stand was quite fetching. Photo by Dorothea Lange for the Resettlement Administration. View full size.