Explore Chicago Collections
https://explore.chicagocollections.org/records/?f6-topics=Events%20%26%20Movements%3A%3AWorld%20War%20I&f2-topics=Events%20%26%20Movements%3A%3AWorld%20War%20I&f1-institutions=Chicago%20History%20Museum&f5-topics=Events%20%26%20Movements%3A%3AWorld%20War%20I&browse-topics=yes