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:
August 1864. Petersburg, Virginia. "Commissioned and non-commissioned officers of Cos. C and D, 1st Massachusetts Cavalry." Happy Veterans Day from Shorpy. Wet plate glass negative; photographs from the main Eastern theater of the war, the siege of Petersburg, June 1864-April 1865. View full size.