Explore Chicago Collections
https://explore.chicagocollections.org/records/?f2-types=Archival+Collections&f4-cities=Chicago&f6-cities=Burnham&f7-institutions=Chicago+History+Museum&f3-cities=Burnham&f5-topics=Events+%26+Movements%3A%3AFairs+%26+Conventions&f1-topics=Events+%26+Movements%3A%3AFairs+%26+Conventions&sort=title