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:
Circa 1863. "Union officer at Point Lookout, Tennessee, with cavalry saber." Quarter-plate tintype, hand-colored, by Royan and James Birney Linn, brothers from Ohio following the Army of the Cumberland. After the battles of Lookout Mountain and Missionary Ridge they set up a studio near Point Lookout. Liljenquist Family Collection, Library of Congress. View full size.