One of the most famous images in American photography, Dorothea Lange's portrait of migrant worker Florence Owens Thompson and three of her children was taken at a pea-pickers camp, north of Los Angeles, in 1936.⁠ Highlighting the plight of the rural poor during the nation's Great Depression, the work was commissioned by the Resettlement Administration, a federal agency established under the US government's New Deal drive.⁠ Memories of the encounter differ between the photographer and the subject. Captured at the end of a long road trip - Lange had originally passed by the camp, but was compelled to turn around - unusually, there was little interaction in the picture-making process.⁠ Nevertheless, the portrait's message was stark. Shot on a 4x5 Graflex camera and tightly cropped, the mother is grave, anxious, and yet remains the central figure that her children fold into; their faces turned away while she gazes out from the temporary shelter.⁠ Upon publication, 20,000 pounds of food we...