Mercer County IL Immigration Records

USA (1,403,636) > Illinois (56,363) > Mercer County (275) > Mercer County Immigration Records (2)

USA (1,403,636) > Illinois (56,363) > Illinois Immigration Records (491) > Mercer County Immigration Records (2)

NOTE: Additional records that apply to Mercer County are also on the Illinois Immigration Records page.

Mercer County Immigration Records

Illinois, Federal Naturalization Records, 1856-1991 Ancestry online

US Naturalization Record Index, Northern Illinois, 1840-1950 ( includes Mercer County, IL) MyHeritage online

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