Explore Chicago Collections
https://explore.chicagocollections.org/records/?f8-institutions=Chicago%20History%20Museum&f5-types=Archival%20Collections&f4-institutions=Chicago%20History%20Museum&f6-institutions=Chicago%20History%20Museum&f1-names=Washington%2C%20Harold%2C%201922-1987&f3-institutions=Chicago%20History%20Museum&f7-topics=Natural%20%26%20Built%20Environments%3A%3ARoads