The Library of Congress has a special collection o...  ...thousand ambrotypes and tintypes taken during the Civil War . Many of these are portraits of soldiers, but als...  ...d Confederate servicemen who died in the American Civil War ....

(Image: David Bachrach/Library of Congress) For a...  ..., it was thought that there was only one existing photograph of President Lincoln at the dedication of the Sol...  ...ple in the picture). But Bachrach wasn't the only photographer at the event. Alexander Gardner and his crew were...  ...d of the stereogra...