Dorothea Lange (May 26, 1895 – October 11, 1965) was an influential American documentary photographer and photojournalist, best known for her Depression-era work for the Farm Security Administration (FSA). Lange's photographs humanized the consequences of the Great Depression and influenced the development of documentary photography. From: http://www.historyplace.com/unitedstates/lange/index.html
February 1939. "On U.S. 99 near Brawley, Imperial County, California. Homeless mother and youngest child of seven walking the highway from Phoenix, Arizona, where they picked cotton. Bound for San Diego, where the father hopes to get on relief 'because he once lived there.'" Medium-format nitrate negative by Dorothea Lange for the Farm Security Administration.