Explore Chicago Collections
https://explore.chicagocollections.org/records/?f4-institutions=Chicago%20History%20Museum&f2-topics=Natural%20%26%20Built%20Environments%3A%3ACity%20Planning&f5-types=Archival%20Collections&f3-institutions=Chicago%20History%20Museum&f6-topics=Creativity%20%26%20Thought%3A%3ADesign