A Guide to St. Louis, Missouri Naturalization Records

This webpage is designed to help find naturalization records for St. Louis, Missouri. It is divided into two main sections, before and after 1906. The records created prior to Sept. 27, 1906 offer minimal information about the applicant. After that date much more information is given.

Note: some of the FamilySearch digitized microfilm rolls linked to below may have restrictions and will only be viewable at a Family History Center or FamilySearch affiliate library.

St. Louis Naturalization Records Before Sept. 27, 1906...

Naturalizations in the city of St. Louis were generally done in either the St. Louis Circuit Court or a related court (in the Civil Courts building), or the Federal Courts (U.S. District Court and U.S. Circuit Court). If your ancestor was Naturalized prior to Sept. 27, 1906 he probably went to the St. Louis Circuit Court (or a related court in the same building). There are online and microfilmed indexes available for naturalization records for the St. Louis Circuit Court in this time frame...

Online Indexes: Digitized Microfilm Index:
  • St. Louis Circuit Court Naturalization Index Cards, 1840-1916 at FamilySearch Look for the camera icons next to each microfilm roll listing to view the images online.
    • For the St. Louis Circuit Court the LDS Family History Library (FamilySearch) in Salt Lake City has an alphabetical St. Louis Naturalization index on 17 rolls of microfilm covering 1840-1916. (Most are prior to Sept. 27, 1906). The information provided by this index (and the corresponding online indexes above) generally includes: name, date of the record, former country of allegiance, which court the naturalization took place, and volume and page number of the original record. The original records usually contain this same information without much additional detail.
Locating the Records:
  • The above indexes include the court where the naturalization took place. You can use that information to help find the FamilySearch digitized microfilm roll number of the original naturalization record. See this guide:
  • Early St. Louis Naturalizations

Pre-1906 Naturalizations Done in Federal Courts
NARA's Kansas City, Missouri branch has a small index of St. Louis naturalizations done in federal courts. If you find someone in this index then you should contact them for copies of the records. Declaration of Intention Records (before Sept. 27, 1906)
Surviving St. Louis Circuit Court declarations are indexed in the online indexes listed above. Many St. Louis Declaration of Intention records in this time period have not survived.

A small number of declarations of intention were done in the Federal U.S. District and U.S. Circuit Courts. These have been indexed online here... St. Louis Naturalization Records on Digitized Microfilm
The Family History Library (FamilySearch) has digitized microfilmed copies of many St. Louis naturalization records. Some of these may be viewable online (look for the camera icons). Some may be viewable online only at a Family History Center or affiliated library (the camera icon will have a key above it). You can find what is available at the links below. Note: the two groups may have inter-mixed records (city and county) so you may need to check both.

St. Louis Naturalization Records After Sept. 26, 1906...

The U.S. District Court naturalization records formerly kept at the Federal Courts Building (at 12th and Market, across the street from the Civil Courts Building) have been moved to the Kansas City, Missouri branch of the National Archives (NARA). They have these records through 1991.

Online Records (1890-1991): Online Records (1908-1926): Online Indexes: St. Louis Naturalization Records Indexes includes...
  • Index to Naturalization Records Created After September 27, 1906
  • Index to Selected Naturalization Records Created Prior to September 27, 1906
  • U.S. District Court - Online Index to Naturalization Stubs
  • Index to Proofs of Declarations of Intention Filed with Final Papers in the Circuit Court, St. Louis, Mo.

St. Louis Resources and More About Naturalization Records

St. Louis Genealogy Resources

Places to Find U.S. Naturalization Records and Indexes Online

Types of U.S. Naturalization Records: A Summary for Genealogy Researchers

...Genealogy Guides...

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