It was during the depth of the Great Depression of the late 1920s and 30s, when at least 14 million people were out of work in the USA, that Dorothea Lange (1895-1965) first ventured out on the streets with her camera. In 1935 a report on migrant workers, illustrated with Lange's photographs, came to the attention of Roy Stryker and in response he invited Lange to become a member of the Farm Security Administration (FSA) photographic unit. Like Stryker, Lange believed that photography was a tool of political action, and this was no more apparent then when the federal government responded to the starvation crisis shortly after the San Francisco News received Lange's photographs - it quickly supplied 20,000 pounds of food to feed hungry migrants at the camps.
