Dorothea Lange's 1936 photograph of a worried migrant mother is the single most iconic image of the Great Depression, and one of the most famous pictures of all time, yet for decades after it was taken, almost nothing was known about its subject.
In 1903, Florence Leona Christie was born in Indian Territory in present-day Oklahoma, the daughter of Cherokees displaced from their native tribal land.
She married her first husband at 17, and started a family while working in the farms and mills of northern California. She gave birth to her sixth child in 1931, six months after her husband died of tuberculosis.
She had another child by a California businessman, and ultimately three more with Jim Hill, a bartender and butcher from Los Angeles. She worked a litany of jobs, day and night, to keep them fed.