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:
May 20, 1862. "The Peninsula, Virginia. The staff of Gen. Fitz-John Porter; Lts. William G. Jones and George A. Custer reclining." Photographs from the main Eastern theater of war: the Peninsular Campaign, May-August 1862. Wet plate glass negative, half of stereograph pair, by James F. Gibson. View full size.