Most of the photos on this site were extracted from reference images (high-resolution tiffs, 20 to 200 megabytes in size) from the Library of Congress research archive. (To query the database click here.) Many were digitized by LOC contractors using a Sinar studio back. They are adjusted by your webmaster for contrast and color in Photoshop before being downsized and turned into the jpegs you see here.
Vintage photos of:
Imperial Valley, California, March 1937. "One of a Mexican field gang of migratory laborers thinning and weeding cantaloupe plants. The young plants are capped with waxed paper spread over a wire wicket to protect against cold and accelerate growth. The laborers' wages are 30 cents an hour." View full size. Medium-format nitrate negative by Dorothea Lange for the FSA.