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.
The latest video from Ken and Shorpilu Studios is "Newsies," about the newsboys who hawked papers on street corners at the turn of the last century, featuring the photography of Lewis Wickes Hine. For maximum impact, view it in Full-Screen mode at 1080p resolution (click "Play," select 1080p, then click the icon).