Is there a place that serves the thin crust style of pizza found in Chicago/St Louis/Midwest anywhere in town?
Stole this description from another site, but it's pretty much dead on, I'd add that the crust typically features cornmeal dusting:
Similar to many midwest cracker thin style pizzas, Chicago thin crust pizza has a smooth, sweet, often zesty, almost paste-like tomato sauce, generous amounts of shredded mozzarella, and is typically cut into squares (aka box-cut or party cut). Pepperoni is an available topping in Chicago, but often comes second to Italian Sausage.
Contrary to what many people on TV tell you, when Chicago locals order pizza, this is the style we usually order. Many in Chicago consider Deep Dish to be a tourist thing.
I looked at Kylie's Chicago pizza and the photos of the thin crust on Yelp make seem to be the typical doughier style of thin crust in slices.