I found these infographics of old Chicago illustrated by Dean Cornwell via Chicago magazine. If you flip through any vitnage magazines or are a fan of 30s ads, you'll know Cronwell's work. It is interesting to see that his style still shines through when reduced to linework.
Illustration aside, I find these infographics extreamly interesting, especially since these type of graphic charts have gained popularity again recently. I hope you enjoy reviewing Chicago as it once was.