Meanwhile Yale has made 170,000 Library of Congress photos(shot 1935 to 1945) available via their Photogrammar site. According to the project site, “The Farm Security Administration-Office of War Information (FSA-OWI) produced some of the most iconic images of the Great Depression and World War II and included photographers such as Dorothea Lange, Walker Evans, and Arthur Rothstein who shaped the visual culture of the era both in its moment and in American memory. Unit photographers were sent across the country. The negatives were sent to Washington, DC. The growing collection came to be known as ‘The File.’ With the United State’s entry into WWII, the unit moved into the Office of War Information and the collection became known as the FSA-OWI File.” [Via]