<human>:  What is the name of the famous photograph by Dorothea Lange?
<bot>: The photograph is called Migrant Mother. It was taken in 1936 by Dorothea Lange, a photographer who worked for the Farm Security Administration. The photograph shows a woman holding her young son, who is crying, as she stands in front of a migrant camp in California. The woman is holding the boy because she is afraid that he will be taken away from her.