Explore Chicago Collections
https://explore.chicagocollections.org/records/?f1-names=Sullivan%2C+Louis+H.%2C+1856-1924&f2-topics=Natural+%26+Built+Environments%3A%3ARoads&f3-cities=Chicago&f4-cities=Chicago&f5-topics=Natural+%26+Built+Environments%3A%3ARailways&f6-institutions=Chicago+History+Museum