Key resources to find election information of Chicago.
The Northwestern University Library has A VERY FEW documents from the Chicago Board of Election Commissioners. So, to access election information of Chicago, please visit/contact the Chicago Public Library's central library (Harold Washington Library), Municipal Reference Collection - the official depository for the Chicago governments documents! Also, for pre-1923 reports by the Chicago Government, try searching in Google Books. Most pre-1923 items are available for download as PDF.
For recent information, visit the official website:
Board of Election, Commissioners for the City of Chicago
Informative site for voters and also for researchers.