However , animosity between the two towns continued , and in 1868 , as records were moved from the old Naperville courthouse to the new one in Wheaton , Naperville refused to turn over the remaining county records , prompting a band of Civil War veterans from Wheaton to conduct what came to be known as the " Midnight Raid " on the Naperville courthouse . As Wheatonites fled back on Wheaton-Naperville Road , Napervillians were able to secure some of the last remaining records , which were then taken to the Cook County Recorder in Chicago for safekeeping . During this time , Naperville was mounting a lawsuit against Wheaton accusing election judges of leaving their posts for lunch during the vote when duplicate ballot stuffing allegedly occurred . As the courts deliberated the fate of the county seat , the records were destroyed in the Great Chicago Fire of 1871 . Shortly thereafter , Wheaton was officially proclaimed the county seat
Great Chicago Fire
Great Chicago Fire
Wheaton, Illinois