Do you research naturalization records? No? Why not? Does the thought of going through paper files in dusty court basements turn you off? Well - I'm here to tell you that it is worth it - and with recent digitization efforts - more and more original documents have been scanned and been made available via microfilm or online.
Some of the larger subscription sites have also made some source documents available - as well as index cards that can lead you to the court that handled the proceedings.
If you wish to get educated first about all of these documents and the naturalization process and how it has changed over time - please read these two terrific summaries:
- The U.S. Archives Naturalization Records
- FamilySearch's Wiki entry United States Naturalization and Citizenship
- Women and Naturalization
Okay - now that you are educated and know that post-1906 - about 4 awesome documents just drip with great information: Declaration of Intent, Petition for Citizenship or Naturalization, Certificate of Arrival, and the Certificate of Naturalization. Many of the online genealogy websites may not have all of these documents available, but do have index cards that are searchable - which has information regarding the court handling the proceedings. With this information you might be able to track down some of the source documents.
Below is a list of links to free online naturalization record and index collections for the state:
Note: Some of the links listed below take you to a FamilySearch Collection of digital images. Near the bottom of the page under Film/Digital Notes is the name of each sub-collection. If there is a camera icon at the right of the name (in the Format column) then the collections' images are browsable. If there is a camera with a key icon, it is only available at a Family History Center or affiliated library. If there is a film reel icon, then it is only available in microfilm format, not digital.
(Updated August, 2020; recently added links are in BOLD)
- Allen County Naturalization Records, 1907-1974
- Ashland County Naturalization Records, 1860-1906
- Ashland County Naturalization Records, 1906-1958
- Ashtabula County Naturalization Records
- Athens County Naturalization Records, 1880-1906
- Athens County Probate Records, 1842-1897; General Indexes, 1800-1966
- Auglaize County Naturalization Index (1840-1906)
- Auglaize County Naturalization Records, 1848-1960
- Belmont County Declaration of Intention Index, 1906-1960
- Belmont County Declarations of Intention, 1862-1906
- Belmont County Naturalization Records, 1860-1906 ; Index, ca. 1860-1906
- Belmont County Petition & Record, 1907-1965 ; Index, ca. 1860-1963
- Brown County Declaration of Intention, 1884-1901; Naturalization Records, 1856-1906
- Carroll County Naturalization Records, 1860-1973
- Champaign and Logan County An Index to Naturalization Records from Champaign County, 1820-1956, and Logan County, 1820-1906
- Champaign County Naturalization Index (1820-1956)
- Champaign County Naturalization Index Card, ca. 1828-1896
- Champaign County Naturalization Records 1860-1898
- Champaign County Naturalization Records, 1900-1960
- Clark and Greene County An Index to Naturalization Records from Clark county, 1820-1906, and Greene County, 1831-1958
- Clark County Naturalization Index (1820-1906)
- Clark County Naturalization Records, 1856-1906
- Clermont County Naturalization Records, 1907-1929
- Clermont County Naturalization Records, v. 1-2, 1880-1905
- Clinton County Naturalization and Declaration of Intention 1872-1895
- Columbiana County Naturalization and Petition Records, ca. 1921-1930
- Coshocton County Index to Naturalization Documents
- Coshocton County Naturalization Records, 1839-1906
- Crawford County Naturalization Records 1860-1906
- Crawford County Naturalizations
- Cuyahoga County Naturalization Indexes
- Cuyahoga County Alien Appearance Docket, 1883-1895
- Cuyahoga County Alien Docket (Declaration of Aliens), 1818-1906
- Cuyahoga County Alien Docket, 1820-1854
- Cuyahoga County Alien Index (Final Papers), ca. 1820's - ca. 1900's
- Cuyahoga County Common Pleas Journals, 1823-1852
- Cuyahoga County Declaration of Aliens under 18, 1883-1906
- Cuyahoga County Declaration of Intention Index of Common Pleas Court, 1910-1915
- Cuyahoga County Declarations of Intention, 1906-1931 ; Indexes, 1906-1971
- Cuyahoga County Index to Naturalizations of Court of Common Pleas, 1818-1931
- Cuyahoga County Naturalization Card File, ca. 1850-1970
- Cuyahoga County Naturalization Index, 1859-1901
- Cuyahoga County Naturalization Records, 1859-1901
- Cuyahoga County Naturalization Records, 1883-1906
- Cuyahoga County Petition and Record, 1906-1931
- Cuyahoga County Petitions for Naturalization, 1902
- Darke and Miami County An Index to Naturalization Records from Darke County, 1812- 1928; and Miami County, 1814-1906
- Darke County Naturalization Index (1814-1928)
- Darke County Naturalization Records, 1876-1906
- Defiance County Naturalization Records, 1870-1906
- Delaware County Naturalization Index, ca. 1830-1896 : A - Z
- Delaware County Naturalization Record 1860-1952
- Erie County Naturalization Records, 1838-1929
- Erie County Naturalization Records, 1854-1877
- Fairfield County Court Records, 1801-1900
- Fairfield County Naturalizations, 1879-1904
- Fayette County Naturalization Records, 1880-1905
- Franklin County Declarations of Intention and Petition for Naturalization, 1846-1917
- Franklin County Naturalization Records, 1859-1906; Index to Naturalization Records, 1850-1906
- Fulton County Declaration of Intention and Naturalization Records, 1908-1929
- Fulton County Naturalization Records, 1872-1906
- Gallia County Civil Journal, 1852-1881
- Gallia County Naturalization Records, 1859-1960
- Gallia County Naturalization Records, 1880-1900
- Geauga County Geauga County Records, 1887-1970
- Geauga County Naturalization Record : 1860-1912
- Geauga County Naturalization Records, 1860-1959
- Greene County Naturalization Index (1831-1954)
- Greene County Index to Naturalization Records
- Greene County Naturalization Records, 1861-1906
- Greene County Naturalization Records, 1880-1886
- Greene County Naturalization Records, 1908-1958
- Guernsey County Naturalization Record, 1864-1906
- Guernsey County Petition & Record, 1907-1946, 1907-1960
- Hamilton County Citizenship Records Index
- Hamilton County Naturalization Index (1856-1906)
- Hamilton County Records, 1791-1994
- Hamilton County Declarations of Intention, 1848-1895
- Hamilton County Index to Aliens, 1880-1899
- Hamilton County Index to Naturalizations, [1864-1908]
- Hamilton County Miscellaneous Probate Court Dockets, 1883-1942
- Hamilton County Naturalization Records, 1850-1902
- Hamilton County Naturalization Records, 1856-1942
- Hamilton County Restoration of Naturalization Papers, 1887-1926 : Second Papers of 1830-1889
- Hamilton County, Miscellaneous abstracts and extracts : ca. 19th century
- Hamilton County, Naturalization and Marriage Records
- Hancock County Naturalization Records, 1876-1903
- Hardin County Naturalization Records, 1854-1929
- Henry County Naturalization Records 1852-1906
- Highland County Naturalization Records, 1879-1899
- Hocking County Naturalization Records ca. 1850-1943
- Holmes County Naturalization Records, 1907-1970; Index, ca. 1840-1940
- Huron County Declaration and Record of first papers 1859-1905
- Huron County Naturalization Records 1859-1905
- Huron County Naturalizations and Declarations of Intent 1846-1929
- Jefferson County court Records, 1797-1947
- Jefferson County Naturalization Records 1823-1958
- Jefferson County Naturalization Records, 1823-1958
- Knox County Naturalization Records, 1860-1953 ; General Index, 1906-1938 ; Index Card File, ca. 1830-1950
- Lake County Naturalizations Indexes
- Lake County Court Journal, chancery Record, law Record, court Docket, 1845-1884
- Lake County Naturalization Records, 1860-1906
- Lawrence County Naturalization Documents
- Lawrence County Naturalizations Indexes
- Lawrence County Naturalization Records, 1907-1954
- Licking County Naturalization Records, 1875-1906
- Logan County Naturalization Index (1821-1906)
- Logan County Naturalization final Record, 1860-1880
- Logan County Naturalization Records 1881-1906
- Lucas County Certificates of Naturalization, ca. 1800's - ca. 1920's
- Lucas County Court Record of Naturalization reports, ca. 1850 - ca. 1935
- Lucas County Declarations of Intentions and Naturalizations, 1844-1906
- Lucas County Indexes to Declarations of Intention and Naturalization Records 1835-1952
- Lucas County Naturalization and Petition Records 1906-1929 ; Index, 1907-1929
- Lucas County Naturalization Records 1885-1906 ; Index, 1835-1906
- Lucas County Naturalization Records for minors 1885-1906
- Lucas County Naturalization Records, 1839-1960
- Lucas County Naturalization Records, 1906-1935, 1906-1935
- Madison County Civil Dockets, v. A-B, 1856-1927
- Madison County Naturalization Records, v. 1-2, 1860-1903
- Mahoning County Naturalization Records, 1873-1906; court calendar of Declaration and Naturalization proceedings, 1846-1866
- Marion County Naturalization Records, 1859-1905
- Meigs County Naturalization Records 1880-1900, 1908-1959
- Mercer and Auglaize County An Index to Naturalization Records from Mercer County, 1814- 1906; and Auglaize County, 1854-1906
- Mercer County Naturalization Index (1814-1906)
- Mercer County Court Records, 1824-1857
- Mercer County Naturalization Records, 1848-1906
- Miami County Naturalization Index (1814-1906)
- Miami County Naturalization Index 1860-1872
- Miami County Court Records, 1807-1858
- Monroe County Naturalization Records, 1867-1959
- Montgomery County Naturalization Index (1803-1931)
- Montgomery County An Index to Naturalization Records 1803-1931
- Montgomery County Naturalization Records, 1834-1916
- Morgan County Court Records, 1819-1853; Index, 1819-1860
- Morgan County Naturalization Record, 1861-1892
- Morrow County Naturalization Records, v. 2, 1880-1896
- Muskingum County Naturalization Records, 1830-1959
- Muskingum County Naturalization Records, 1860-1905
- Ohio Counties Naturalization Records Indexes
- Ohio, County Naturalization Records, 1800-1977
- Ohio, Northern District : Eastern Division Index Cards to Naturalization Petitions 1855 – 1967
- Ohio, Northern District Naturalization Records, 1852-1903 ; Index to Naturalization Petitions and Records, 1855-1903
- Ohio, Northern District Naturalization Records, 1907-1950
- Ohio, Northern District, Eastern Division, Naturalization Index, 1855-1967
- Ohio, Northern District, Eastern Division Naturalization Service, Petition and Records, 1907-1946
- Ohio, Southern District Naturalization Index, 1852-1991
- Ohio, Southern District Declaration of Intention and Certificates of Naturalization stubs 1916-1935, 1916-1935
- Ohio, Southern District Military Petition for Naturalization 1918-1919
- Ohio, Southern District Military Petitions for Naturalization 1918-1919
- Ohio, Southern District Naturalization Index, 1852-1991
- Ohio, Southern District Naturalization service Petition and Record and certificates of Naturalization stubs at Dayton, 1916-1931
- Ohio, Southern District Naturalization service Petition and Record at Columbus and certificates of Naturalization stubs, 1918-1931
- Ohio, Southern District Record of Declaration of Intention at Columbus, 1917-1950
- Ohio, Southern District, Western Division Naturalization Records, 1906-1966
- Ottawa County Declaration of Intention Record, 1877-1902; Naturalization Record, 1877- 1903
- Ottawa County Naturalization Records, 1904-1905
- Ottawa County Naturalization Records, affidavits, 1860-1872, 1876-1877
- Ottawa County Naturalization Records, ca. 1904-1940
- Paulding County Naturalization Records, 1860-1903
- Paulding County Naturalization Records, 1908-1930
- Perry County Naturalization Records, 1859-1906
- Pickaway County Declaration of Intention & Naturalization Record, 1860-1924
- Portage County Naturalization Records, 1859-1906
- Preble County Naturalization Records, 1860-1905
- Putnam County Declaration of Intention, 1833-1915
- Putnam County Naturalization Records 1854-1905
- Putnam County Naturalization Records, 1861-1929
- Richland County General Index to miscellaneous Records, v. 1, 1813-1900
- Richland County Naturalization Intention papers, (1875-1896)
- Richland County Naturalization Records, 1852-1906
- Ross County Naturalization Records v. 1-4, 1851-1906
- Ross County Naturalization Records, v. 1-4 1851-1903 [and] File Card Index
- Sandusky County Declarations of Intention, 1830-1930
- Sandusky County Naturalization papers, 1830-1860
- Sandusky County Naturalization Records, 1859-1929
- Scioto County Affidavits, Declarations of Naturalization, 1859-1872
- Scioto County Naturalization Records, 1858-1945
- Scioto County Naturalization Records, 1880-1906
- Seneca County Naturalization Records 1834-1930
- Seneca County Naturalization Records 1852-1930
- Shelby County Naturalization Index (1814-1906)
- Shelby County An Index to Naturalization Records 1814-1906
- Shelby County Naturalization Records, 1836-1905
- Stark County Naturalization Search
- Stark County Naturalization Records, 1861-1903
- Stark County, Naturalization Records, 1888-1925, 1925-1957
- Summit County Naturalization Search
- Summit County Naturalization Records, 1859-1906
- Summit County Naturalizations, 1849-1930
- Summit County, Naturalization Card File, ca. 1842-1977
- Trumbull County Records, 1795-2010
- Trumbull County, Naturalization Records, 1855-1985
- Tuscarawas County General Index to Files, 1808-1939
- Union County Declaration of Intention, 1874-1906
- Union County Declaration of Intention, 1906-1918 ; Naturalization Record of alien and minor, 1903
- Union County Naturalization Records, v. A-C, 1860-1906
- Union County, Naturalization Records, 1820-1920
- Van Wert County Naturalization Records, 1852-1905
- Vinton County Naturalization Records, 1877-1926
- Warren County Naturalizations Index, 1821-1925
- Warren County Naturalization Records, 1856-1906
- Washington County Naturalization Records, 1859-1905
- Wayne County Naturalization Records, 1861-1903
- Wood County Naturalization Records, 1859-1906 ; Index, 1859-1906
- Wyandot County Naturalization Records, 1860-1949
Good Luck and Happy Hunting!
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