Ohio Naturalization and Citizenship

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Online Resources[edit | edit source]

Availability of Records[edit | edit source]

Naturalization records have been filed in the U.S. District and Circuit Courts and in the local courts in Ohio counties, especially in the courts of common pleas and the probate courts (after 1851). No centralized files exist before 1906.

Various types of records were created by the courts, including declarations, petitions, alien dockets, and military petitions for naturalization. Each record in the naturalization process may give different details about the person's travels, such as the date and port of arrival or the name of the ship. Not all counties recorded the same information.

Statewide List[edit | edit source]

For each county, this book describes the court; the years the records exist; where the originals are housed; and the Family History Library film numbers, if they have been microfilmed. This book was published in 1997, so the Family History Library has acquired additional records since then. Always search the FamilySearch Catalog for naturalization information in the county. The introduction discusses the naturalization process, the types of records created, and the usual genealogical content of each record.

U.S. District Court Records[edit | edit source]

  • United States. District Court (Ohio: Southern District), Naturalization Index, 1852-1991. (Salt Lake City, Utah: Genealogical Society of Utah, 1992.) FHL film 1819410 (first of 16 films). An index to the records for the court at Cincinnati. There are three indexes in this set: 1852 to 1892; 1906 to 1986; and 1917 to 1991. The original records are at the U.S. District Court, Cincinnati.
  • The Family History Library also has the U.S. District Court records which have been microfilmed for the Ohio Southern District Courts held at Dayton, Columbus and Cincinnati and the Ohio Northern District Courts, Eastern Division held in Cleveland. Mostly for the period 1916 to 1931, the records include petitions, declarations of intention, and military petitions for naturalization. They are listed in the Place Search of the FamilySearch Catalog under:
U.S. District Court, Ohio Northern District, Eastern Division, Cleveland. Naturalizations, 1855-1943.
U.S. District Court, Ohio Southern District, Eastern Division, Columbus. Naturalizations, 1916-51.
U.S. District Court, Ohio Southern District, Western Division, Dayton. Naturalizations, 1906-30.
U.S. Circuit Court, Ohio Southern District, Western Division. Naturalization Records, 1852-1905.
Locating the Correct District Court[edit | edit source]

To determine the district court your ancestor lived in, click on United States District Court Jurisdictions. You must know the county your ancestor resided in.

Post 1906 Records[edit | edit source]

The Ohio Historical Society in Columbus includes a listing of their holdings of naturalization records on their Internet site, which is mentioned in Ohio Archives and Libraries.

Family History Library[edit | edit source]

  • The Family History Library has microfilms of naturalization applications from most counties, generally covering the years 1850 to about 1906 or later. These are listed in the Place Search of the FamilySearch Catalog under:

Records of larger cities may also be found under:


Websites[edit | edit source]

  • Wiki articles describing online collections are found at:

References[edit | edit source]