Explore Chicago Collections
https://explore.chicagocollections.org/records/?f2-topics=Government%20%26%20Leadership%3A%3AMilitary&f1-topics=Natural%20%26%20Built%20Environments%3A%3ARailways&sort=title&f5-topics=Government%20%26%20Leadership%3A%3AMilitary&f3-topics=Events%20%26%20Movements%3A%3AWars