Pennsylvania State University, "The Times of Sorrow and Hope Website,"
http://www.libraries.psu.edu/psul/digital/sorrowhope.html
A complete catalog of photographs taken by close to forty photographers in nearly 200 Pennsylvania towns, villages, and cities, under the auspices of the Farm Security Administration-Office of War Information during the 1930s and early 1940s
Referenced in:
Pennsylvania and the Great Depression