W. Eugene Smith was a master of the photojournalism essay. I became aware of his work in doing research on the Battle of Saipan in which my father fought. Smith was there and documented the aftermath of the Japanese banzai attack on July 7, 1944. There were other photos that he took on Saipan of the interaction between U. S. soldiers and the local children. After the war, Smith documented the effects of mercury pollution in Japan in his essay Minamata.
“Migrant Mother” (1936) by Dorothea Lange is probably the most well recognized photo taken by the Farm Security Administration photographers that symbolizes the Great Depression. Several hundred thousand images both in black and white and in color were shot during this period.