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The St. Louis Circuit Court office has naturalization records from 1821 to 1906. The index to this set of records, with approximately 93,000 files, is available through our search engine. In the 1930s, the WPA staff produced index cards for the naturalization records indicating the name, date of the record, name of the court, and former country. Some cards also listed witnesses to the event.
Naturalizations in St. Louis from 1821 to 1906
The St.Louis Genealogical Society Naturalizations site shows a sample of the original record and the limited information available. It provides the name of the new citizen, his former country, and the date of naturalization. These early records do not provide the port or date of entry, the name of the ship, or other family members.
St. Louis Genealogical Society sorted, alphabetized, and indexed over 93,000 names included on these cards. Missouri Archives then microfilmed the sorted cards. The original records are available on microfilm at St. Louis County Library Special Collections, St. Louis Public Library, Missouri Archives, and the Family History Library. The index to this set of records, with approximately 93,000 files, is available through our search engine.
This index was based on the original WPA card set. Additional naturalization information may be found in the original records. If your ancestor’s name is not included, try alternate spellings and check the indexes of the original records, which are available on microfilm.
If you believe the naturalization took place after 1876, the record may be located at the current St. Louis County Government Center. In 1876, St. Louis County and St. Louis City separated. St. Louis City became an independent city; however, St. Louis City retained all previously recorded documents. In 1876, a new county courthouse and record center was established in Clayton, Missouri. It may be necessary to check both locations for any St. Louis record. An index for post-1906 St. Louis County naturalizations is available at St. Louis County Library Special Collections.
NARA – Central Plains Region – Kansas City – St. Louis records
Henson, Alice. Naturalization Dockets, St. Louis, Missouri, Supreme Court, Volume 1, 1860–1864; Volume 2, 1864–1876. Jefferson City, Missouri: Mid-Missouri Genealogical Society, Inc., 1991.
Newman, John J. American Naturalization Processes and Procedures, 1790–1985. Indianapolis, Indiana: Indiana Historical Society, 1985.
Szucs, Loretto Dennis. They Became Americans: Finding Naturalization Records and Ethnic Origins. Salt Lake City, Utah: ] Ancestry, 1998.
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