Explore Chicago Collections
https://explore.chicagocollections.org/records/?f1-cities=St.+Charles&f10-cities=Addison&f2-cities=Schaumburg&f3-cities=West+Chicago&f4-cities=Carol+Stream&f5-cities=Lombard&f6-cities=Batavia&f7-cities=St.+Charles&f8-types=Archival+Collections&f9-cities=Warrenville