Civil War Photographs from the Library of Congress This searchable collection of 1,118 digitized photographs includes scenes of military personnel, preparations for battle, battle after-effects, and numerous portraits of officers and enlisted men.
Pictures of the Civil War [National Archives]
Civil War Photographs [about 25] from the BYRD History FTP site at Marshall University.
Civil War Photographs [State Historical Society of Wisconsin] See the file, "About the Images in the Civil War Directory," for a brief description of the 6 photographs.