Here’s a Library of Congress page with scads of stereographic photos from the Civil War.
gallery
American Western Frontier Photos
For Wild West fans, here are a bunch of period photos of the American West.
Color Photos From The US In The 1930s and 1940s
Fans of pulp and other inter-war gaming might be interested in seeing these rare color photos of life in the US in the 1930s and 1940s. It should give you some good ideas about colors.
The US Philippine War In Photos
Here’s a neat photo album – history of the US Philippine War 1899 – 1902.
Photographic History of the Civil War
The Photographic History of the Civil War is a classic work available now as an ebook, in pdf format and in other ways online.
Thanks to reader FNH for the tip!!