Between 1908-1924, Lewis Hine worked for the National Child Labor Committee traveling the country, and taking pictures of child laborers. Hine's photographs prompted instrumental changes into child labor laws in the United States. Below are some of his most well known photographs. You can see the entire National Child Labor Committee Collection at the Library of Congress website.
During the height of the Great Depression, the government funded several work programs to help Americans gain steady employment. Dorothea Lange was hired as a photographer for the Farm Security Administration to document these efforts, and would use her position to take some of the most well known photographs of Depression era America. Below are some of her most famous photos. You can see the entire Farm Security Administration - Office of War Information Photograph Collection at the Library of Congress website.
Destitute pea pickers in California. Mother of seven children, age thirty-two. Nipomo, California, 1936
Toward Los Angeles, California, 1937
J.R. Butler, Southern Tenant Farmer's Union President. Memphis Tennessee, 1938
The Dustbowl: Photography
The Grapes of Wrath
Along with Lange's photographs, John Steinbeck's novel The Grapes of Wrath would help bring attention to the challenges farmers faced during the Depression, and how they struggled to find gainful employment.