I am trying to figure out how to obtain naturalization records for Lake County residents from the mid to late 1800's. Both of these facilities claim to have naturalization records: National Archives Great Lakes Region, 7358 South Pulaski Road, Chicago http://www.nara.gov/regional/chicago.html Illinois State Archives (IRAD) Northen IL Region, Dekalb http://www.cyberdriveillinois.com/departments/archives/irad/niumap.html However, when I called both of these archives, they said they don't have any naturalization records for Lake County, and I should call the Lake County Courthouse. Yet, when I called the Courthouse they say they do not have them either. Has anybody ever successfully done this before? Thanks, Tom Wagner