Explore Chicago Collections
https://explore.chicagocollections.org/records/?f2-topics=Natural+%26+Built+Environments%3A%3ARoads&sort=title&f1-names=Sullivan%2C+Louis+H.%2C+1856-1924&f3-topics=Natural%20%26%20Built%20Environments::Roads&f4-institutions=Chicago%20History%20Museum