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.
Scranton, Pennsylvania, circa 1900. "Delaware, Lackawanna, and Western Railroad yards," the two images Scranton: 1900 and Old King Coal: 1900 put together, using some cut & paste techniques. The difference is only one freight train, the smart observer Dave recognized the man in the white overalls, who seems now to have solved the "bilocation" problem! View full size.