Above is one of a series of photos taken by Dorethea Lange of Florence Owens Thompson and her children which have become known as the "Migrant Mother" photographs. They were taken in March or February 1936 at the end of a month long trip photographing migrant farm laborers around the California. Lange was working for what was at the time time called the Resettlement Adminstration. Below is her recollection of the day some 24 years later.

"I saw and approached the hungry and desperate mother, as if drawn by a magnet. I do not remember how I explained my presence or my camera to her, but I do remember she asked me no questions. I made five exposures, working closer and closer from the same direction. I did not ask her name or her history. She told me her age, that she was thirty-two. She said that they had been living on frozen vegetables from the surrounding fields, and birds that the children killed. She had just sold the tires from her car to buy food. There she sat in that lean- to tent with her children huddled around her, and seemed to know that my pictures might help her, and so she helped me. There was a sort of equality about it." (From: Popular Photography, Feb. 1960).

Dorothea Lange was born in Hoboken, New Jersey, in 1895 and studied photography in New York City before the First World War. In 1919, she moved to San Francisco, where she earned her living as a portrait photographer for more than a decade. During the Depression's early years Lange's interest in social issues grew and she began to photograph the city's dispossessed. A 1934 exhibition of these photographs introduced her to Paul Taylor, an associate professor of economics at the University of California at Berkeley, and in February 1935 the couple together documented migrant farm workers in Nipomo and the Imperial Valley for the California State Emergency Relief Administration.

America from the Great Depression to WWII: Black & white photographs from the FSA - OWI 1935-1945