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Ancestry.com - Search Immigration & Travel

Passenger lists, citizenship, naturalization, and other immigration sources. Ancestry.com has searchable indexes; database results and some digitized images are available with a fee-based subscription. Free articles and helpful research materials.

Cook County Clerk of the Circuit Court: Search the Naturalization Declarations of Intention

Cook County is in Illinois, and includes the city of Chicago. The Clerk of the Circuit Court of Cook County Archives is home to more than 500,000 naturalization petitions covering the years 1871 to 1929. More than 400,000 of these records are Declarations of Intention, 1906-1929 which were usually the first papers to be filed by those who wished to become U.S. citizens. After searching for someone, the listing does not now give the pointer indication that the person's listing is clickable, but each listing IS clickable. This leads to more information on the person.

Findmypast - Illinois, Northern District, Naturalization Index $

Online Illinois Naturalization Records Indexes & Databases

A directory of online Illinois naturalization indexes listed by county.

SAMPUBCO, Illinois Naturalization Indexes, Probates

Indexes for: Wills and Heirs, Surrogate's Records / Probate / Estate Files, Guardianships, Naturalizations, Miscellaneous Orders and Decrees, Letters of Administration, Letters Testamentary, Petitions for Administration, Proofs of Wills, Cemetery Burials, Renunications, Biographies. You can order copies of the original source documents for a small fee. This service pertains only to entries found in the indexes on this web site.

Swedish America Heritage Online - Illinois, New York, Massachusetts

The purpose of this website is for educational and historical research. It digitally preserves the genealogy data and images of Swedish American emigrants, their ancestors and descendants. If you find a match on our data base with one of your ancestors, please assist us by becoming a registered user and update the appropriate branch that includes your family. There is no fee for this service.