The Photographic History of the Civil War (10 vols.; 1911) offered context for thousands of striking images from the American Civil War: 1 - The Opening Battles; 2 - Two Years of Grim War; 3 - The Decisive Battles; 4 - The Cavalry; 5 - Forts and Artillery; 6 - The Navies; 7 - Prisons and Hospitals; 8 - Soldier Life / Secret Service; 9 - Poetry and Eloquence of Blue and Gray; 10 - Armies and Leaders. It was also a capstone in the intriguing career of a little-known popular historian and silent era filmmaker. [more inside]
The U.S. National Archives' Flickr Photostream. Includes collections of historical photographs and documents | Civil War photos by Mathew Brady | and the Documerica Project by the EPA in the 1970s. There is also a nice set of Ansel Adams landscape photographs.