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.
World War 2 photos documenting life on the home front, including defense plants manufacturing aircraft and armaments, and the railroads and trains that moved them to the Atlantic and Pacific coasts. Many large-format Kodachromes by Jack Delano and other photographers on assignment for the Office of War Information, as well as photos by Ansel Adams documenting Japanese-American internment camps along the West Coast.