Montana in the American Civil War Montana in the American Civil War The area that eventually became the U.S. state of Montana played little direct role in the American Civil War. The closest the Confederate States Army ever came to the area was New Mexico and eastern Kansas, each over a thousand miles away. There was not even an organized territory using "Montana" until the Montana Territory was created on May 26, 1864, three years after the Battle of Fort Sumter. In 1861, the area was divided between the Dakota Territory and the Washington Territory, and in 1863, it was part of the Idaho Territory. Nevertheless,
Photographers of the American Civil War April 14, 1861, Osborn would visit the fort and its surrounds on at least two occasions, taking at least 43 stereo images of the battle's aftermath, in what is the largest known group of Confederate images of the war, and which is considered the most comprehensive photographic record of a Civil War engagement ever made. Today, thirty-nine are known to exist. Their friendship would outlast their Charleston business however, which the war and damaging fires had brought to an end by February 1862. Then, in September 1863, in response to Gen. Thomas Jordan's desire to document what "Southern troops could