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Found this on familysearch.org........family search is a free website.......you just need to register to use.
Dear Mr. Jacobson,
Thank you for posting your request on History Hub!
Prior to September 27, 1906, any "court of record" (municipal, county, state, or Federal) could grant United States citizenship. Often petitioners went to the court most geographically convenient for them. As a general rule, the National Archives does not have naturalization records created in state or local courts. However, if his petition was filed in Illinois, the National Archives at Chicago (RM-CH) may have a copy of both his declaration and petition within their holdings, We suggest you contact RM-CH via email at email@example.com to request a copy of these records. Please let them know of the possible last name variants. We also suggest that you search the Naturalization Declarations of Intention from the Cook County Clerk Archives.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RM-CH. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your family research!