The Ancestor Hunt regularly adds and updates new collection links, as well as searches for and fixes broken links.
(This page's most recent update is January 2025)
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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 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 have 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 links listed 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. To take full advantage make sure that you are logged in to FamilySearch. The results may be different if you are signed in, rather than not.
Massachusetts Naturalization Records
- Barnstable County Declarations of Intention, 1907-1935
- Barnstable County Naturalizations, 1907-1933
- Barnstable County, Barnstable, Court of Common Pleas Naturalization Records, 1827-1886
- Barnstable County, Barnstable, Superior Court Naturalization Records, 1827-1913
- Barnstable County, Barnstable, Supreme Judicial Court Naturalization Records, 1827-1886
- Berkshire County Naturalization Records, 1886-1906
- Berkshire County Naturalization Declarations and Petitions, 1848-1885
- Berkshire County Naturalization Declarations of Intention, 1906-1945; Index 1829-1936
- Berkshire County Naturalization Index, 1815-1906
- Berkshire County Naturalization Petitions and Records, 1891-1934, 1937-1945, (Index 1826-1938)
- Berkshire County Naturalization Record Index Cards, 1815-1985
- Berkshire County Naturalization Records Index, Petitions and Oaths, and Declarations and Intentions; 1885-1906
- Berkshire County Naturalization Records, 1843-1856
- Berkshire County Naturalization Records, ca. 1866-1941
- Berkshire County Previous Declarations and Petitions for Naturalization [docket Book], 1856-1887
- Berkshire County, Adams, District Court Naturalization Records, 1895-1906
- Berkshire County, Lee, Police Court Naturalization Records, 1900-1906
- Berkshire County, North Adams, District Court Naturalization Records, 1891-1906
- Berkshire County, Pittsfield, Court of Common Pleas Naturalization Records, 1787-1860
- Berkshire County, Pittsfield, District Court Naturalization Records, 1885-1906
- Berkshire County, Pittsfield, Superior Court Naturalization Records, 1859-1886
- Berkshire County, Pittsfield, Supreme Judicial Court Naturalization Records, 1787-1876
- Boston Naturalization Records
- Boston, Naturalized Voters, 1864-1871
- Bristol County Civil Docket Books with Naturalizations, 1884-1895
- Bristol County Naturalization — Petitions and Records, 1805-1856
- Bristol County Naturalization Card File, 1885-1906
- Bristol County Naturalization Declarations of Intention, 1896-1906
- Bristol County Naturalization Declarations, 1901-1906; Index Cards, 1885-1906
- Bristol County Naturalization Docket Books (1904-1906) – Primary Declarations and Final Applications
- Bristol County Naturalization Index — Declarations and Petitions, previous to 1856
- Bristol County Naturalization Index, 1805-1906
- Bristol County Naturalization Index, 1907-1992; Declaration of Intentions, 1906-1930
- Bristol County Naturalization Index, ca. 1852-1885
- Bristol County Naturalization Petition Packets and Index, 1885-1906
- Bristol County Naturalization Primary Declarations, 1885-1906
- Bristol County Naturalization Records — Declarations of Intention (1870-1885, 1931-1945) and Petitions (1856- 1945)
- Bristol County Naturalization Records – Preliminary Petitions, 1927
- Bristol County Naturalization Records – Primary Declarations and Final Applications, 1885-1906
- Bristol County Naturalization Records – Primary Declarations, 1852-1885
- Bristol County Naturalization Records from Various District Courts – Primary Declarations, 1906-1909
- Bristol County Naturalization Records, 1904-1906
- Bristol County Record of Final Applications for Naturalization, 1896-1906
- Bristol County, Attleboro, District Court Naturalization Records
- Bristol County, Fall River, District Court Naturalization Records, 1885-1906
- Bristol County, Naturalization Records, 1896-1906
- Bristol County, New Bedford, District Court Naturalization Records, 1885-1906
- Bristol County, New Bedford, Police Court Naturalization Records, 1847-1855
- Bristol County, Taunton, Court of Common Pleas Naturalization Records, 1805-1867
- Bristol County, Taunton, District Court Naturalization Records, 1885-1895
- Bristol County, Taunton, Superior Court Naturalization Records, 1856-1885
- Bristol County, Taunton, Supreme Judicial Court Naturalization Records, 1814-1885
- District Court Naturalization Petition Records, 1847-1902
- Dukes County, Edgartown, Court of Common Pleas, Naturalization Records, 1790-1858
- Dukes County, Edgartown, Superior Court, Naturalization Records, 1877-1906
- Essex County Declaration Records (1906-1945)
- Essex County Naturalization Declaration Records (1920-1945)
- Essex County Naturalization Index (1906-1939)
- Essex County Naturalization Petitions (1920-1945)
- Essex County Naturalization Records Index, 1906-1982
- Essex County Naturalization Records Index, 1906-1982
- Essex County Petition Records (1907-1945)
- Essex County, Court of Common Pleas, Naturalization Records, 1797-1859
- Essex County, District Court of Eastern Essex, Naturalization Records, 1900-1906
- Essex County, First District Court of Essex, Naturalization Records, 1886-1906
- Essex County, Gloucester Police Court, Naturalization Records, 1885-1907
- Essex County, Haverhill Police Court, Naturalization Records, 1885-1899
- Essex County, Haverhill, Central District Court of Northern Essex, Naturalization Records, 1899-1906
- Essex County, Lawrence Police Court, Naturalization Records, 1885-1906
- Essex County, Lynn Police Court, Naturalization Records, 1883-1906
- Essex County, Newburyport Police Court, Naturalization Records, 1845-1906
- Essex County, Salem Police Court, Naturalization Records, 1842-1901
- Essex County, Salem, Supreme Judicial Court, Naturalization Records, 1798-1862
- Essex County, Superior Court, Naturalization Records, 1859-1885
- Essex County, Superior Court, Naturalization Records, 1859-1891
- Essex, Amesbury, Second District Court of Essex, Naturalization Records, 1904-1906
- Franklin County Applications for Naturalization (Final Declarations), 1899-1906
- Franklin County Naturalization Index, 1896-1906; Naturalization Files (Primary and Final Declarations), 1891-1906
- Franklin County Naturalization Indexes (1811-1991)
- Franklin County Naturalization Records–Petitions (1907-1945)
- Franklin County, Court of Common Pleas, Naturalization Records, 1839-1859
- Franklin County, District Court of Eastern Franklin, Naturalization Records, 1899-1906
- Franklin County, District Court of Franklin, Naturalization Records, 1898
- Franklin County, Greenfield, Supreme Judicial Court, Naturalization Records, 1858-1872
- Franklin County, Naturalization Declarations 1906-1945
- Franklin County, Superior Court, Naturalization Records, 1859-1896
- Gloucester, Naturalization Records – Notices of Application 1885-1900
- Hampden County Index to Naturalization Records, 1812-1853
- Hampden County Naturalization Certificates of Intention, 1875-1893
- Hampden County Naturalization Declarations of Intention, 1906-1931
- Hampden County Naturalization Docket (1896-1906), and Naturalization Records Index (1896 -1906)
- Hampden County Naturalization Papers of Primary Declarations, 1853-1877
- Hampden County Naturalization Papers, Primary and Final, 1853-1874
- Hampden County Naturalization Papers: Pending (1851-1890), and Dismissed (1886-1887)
- Hampden County Naturalization Petitions Index 1906-1989
- Hampden County Naturalization Petitions of Military Personnel, 1918
- Hampden County Naturalization Petitions, Declarations, and Orders, 1927-1945
- Hampden County Naturalization Primary and Final Papers, 1853-1906
- Hampden County Naturalization Records of Final Admission and Primary Declaration, 1840- 1852
- Hampden County Naturalization Records, 1879-1906
- Hampden County Records of Naturalization and Final Admission, 1875-1880
- Hampden County, Chicopee Police Court, Naturalization Records, 1881-1906
- Hampden County, Court of Common Pleas and Supreme Judicial Court, Naturalization Records, 1812-1867
- Hampden County, District Court of Eastern Hampden, Naturalization Records, 1896-1906
- Hampden County, District Court of Western Hampden, Naturalization Records, 1886-1906
- Hampden County, Holyoke Police Court, Naturalization Records, 1885-1906
- Hampden County, Springfield Police Court, Naturalization Records, 1866-1906
- Hampden County, Superior Court, Naturalization Records, 1853-1906
- Hampshire County Final Naturalization Docket, 1903-1906
- Hampshire County Naturalization Index, 1859 – Present
- Hampshire County Naturalization Records, 1849-1934; General Index, 1836-1986
- Hampshire County, Court of Common Pleas, Naturalization Records, 1849-1859
- Hampshire County, District Court of Eastern Hampshire, Naturalization Records, 1903-1906
- Hampshire County, District Court of Hampshire, Naturalization Records, 1885-1906
- Hampshire County, Superior Court, Naturalization Records, 1859-1896
- Hampshire County, Supreme Judicial Court, Naturalization Records, 1852-1873
- Hampshire Naturalization Dockets, 1885-1906
- Massachusetts County Naturalization Records Index
- Massachusetts Naturalization Index, 1906-1966
- Massachusetts Index to Declaration of Intentions
- Massachusetts Indexes to Returns of Naturalizations, 1920-1923, 1924-1925
- Massachusetts Naturalization Index Cards, 1790-1926
- Massachusetts Naturalization Records 1845-1911
- Massachusetts Overseas Military Naturalization Petitions, 1943-1945
- Massachusetts Petitions and Records 1906-1929
- Massachusetts Returns of Naturalization 1885-1931
- Massachusetts, Naturalization Records, 1906-1917
- Massachusetts, United States Naturalization Records, 1871-1991
- Massachusetts, Naturalization Records, 1907-1966
- Massachusetts, Repatriation of Soldiers: Act of May 9, 1918, 1919-1941
- Massachusetts, Repatriation of Women Who Married non-American Citizens: Act of June 25, 1936, 1936-1945
- Middlesex County Naturalization Declaration Records, 1906-1945
- Middlesex County Naturalization Petition Records, 1911-1945
- Middlesex County Naturalization Records and Certificates Indexes, 1906-1984
- Middlesex County Naturalization Records, 1841-1884
- Middlesex County, Ayer, First District Court of Northern Middlesex, Naturalization Records, 1887-1906
- Middlesex County, Cambridge, Third District Court of Eastern Middlesex, Naturalization Records, 1886-1906
- Middlesex County, Concord, District Court of Central Middlesex, Naturalization Records, 1905-1906
- Middlesex County, Framingham, First District Court of Southern Middlesex, Naturalization Records, 1885-1906
- Middlesex County, Malden, First District Court of Eastern Middlesex, Naturalization Records, 1885-1906
- Middlesex County, Naturalization Records, 1809-1906
- Middlesex County, Police Court of Lowell, Naturalization Records, 1836-1906
- Middlesex County, Police Court of Marlborough, Naturalization Records, 1885-1906
- Middlesex County, Police Court of Newton, Naturalization Records, 1885-1906
- Middlesex County, Police Court of Somerville, Naturalization Records, 1886-1906
- Middlesex County, Waltham, First District Court of Eastern Middlesex, Naturalization Records, 1885-1906
- Middlesex County, Woburn, Fourth District Court of Eastern Middlesex, Naturalization Records, 1885-1906
- Nantucket County Naturalization Records: Declarations of Intention (1908-1945); Petitions (1910-1945); Citizenship Petitions Granted (1930-1945)
- Nantucket County, Court of Common Pleas and Superior Court, Naturalization Records, 1804-1903
- New England Petitions for Naturalization Index, 1791-1906
- New England, Index to Naturalization Petitions, 1791-1906
- New England, Petitions for Naturalization, 1787-1931
- Norfolk County (various Courts), Naturalization Records, 1804-1906
- Norfolk County Naturalization Records and Index Cards, 1806-1958
- Norfolk County, Brookline Municipal Court, Naturalization Records, 1888-1906
- Norfolk County, District Court of Southern Norfolk, Naturalization Records, 1891-1906
- Norfolk County, District Court of Western Norfolk (holden at Franklin and Walpole), Naturalization Records, 1900-1906
- Norfolk County, Quincy, District Court of East Norfolk, Naturalization Records, 1886-1906
- Plymouth County (Massachusetts) Petition and Records Index, 1906-1984
- Plymouth County Applications for Naturalization, V. 1-2, 1885-1906
- Plymouth County Brockton Certificates Stub Index, 1907-1990
- Plymouth County Declaration Records, 1906-1945
- Plymouth County Declaration Records, 1909-1945
- Plymouth County Declarations of Intention Index, 1906-1984
- Plymouth County Naturalization Declarations and Petitions (1907-1945)
- Plymouth County Naturalization Declarations and Petitions (1910-1945)
- Plymouth County Naturalization Index Cards, Docket Book, and Papers, 1885-1906
- Plymouth County Petition Index and Declaration Index, 1906-1984
- Plymouth County, Court of Common Pleas (Plymouth), Petitions for Naturalization, 1812-1858
- Plymouth County, Fourth District Court of Plymouth (holden in Middleborough and Wareham), Naturalization Records, 1885-1906
- Plymouth County, Plymouth, Superior Court, Naturalization Records, 1860-1885
- Plymouth County, Police Court of Brockton, Naturalization Records, 1886-1906
- Plymouth County, Second District Court of Plymouth (holden at Abington and Hingham), Naturalization Records, 1887-1903
- Plymouth County, Supreme Judicial Court, Petitions for Naturalization, 1818-1877
- Plymouth County, Third District Court of Plymouth, Petitions for Naturalization, 1885-1906
- Southern New England Irish, Massachusetts Naturalization Index
- Springfield Naturalization Papers and Indexes, 1885-1906
- Springfield Primary Declarations and Naturalizations, 1852-1855
- Springfield, Naturalization Index, March 4, 1886 – August 22, 1906
- Suffolk County Naturalization Applications and Papers, 1885-1906
- Suffolk County Primary and Final Declarations of Intention and Naturalizations, 1864- 1888 and Card Index 1856-1884
- Suffolk County, Boston Municipal Court, Naturalization Records, 1806-1859
- Suffolk County, Boston Municipal Court, Naturalization Records, 1852-1905
- Suffolk County, Boston, Municipal Court for Criminal Business, Naturalization Records, 1885-1905
- Suffolk County, Boston, Naturalization Records
- Suffolk County, Boston, Superior Court for Criminal Business, Naturalization Records, 1860-1906
- Suffolk County, Boston, Superior Court, Naturalization Records, 1856-1884
- Suffolk County, Brighton District Municipal Court, Naturalization Records, 1894-1906
- Suffolk County, Charlestown District Municipal Court, Naturalization Records, 1902-1906
- Suffolk County, Dorchester District Municipal Court, Naturalization Records, 1902-1906
- Suffolk County, East Boston, Naturalization Records, 1885-1906
- Suffolk County, Police Court of Chelsea, Naturalization Records, 1886-1906
- Suffolk County, Roxbury District Municipal Court, Naturalization Records, 1885-1906
- Suffolk County, South Boston Municipal Court, Naturalization Records, 1900-1906
- Suffolk County, Supreme Judicial Court, Naturalization Records, 1790-1845
- Suffolk County, United States Circuit Court, Petitions for Naturalization, 1845-1878
- Suffolk County, West Roxbury District Municipal Court, Naturalization Records, 1892-1906
- United States, New England Naturalization Index, 1791-1906
- Worcester County Naturalization Records Declarations of Intention, 1909-1945
- Worcester County Naturalization Records Index, 1943-1978; Declarations Index, 1943-1978
- Worcester County Naturalization Records Petitions Indexes (1885-1949) and Petitions (1906-1945)
- Worcester County Returns of Naturalization, 1916-1929
- Worcester County, Brookfield, District Court of Western Worcester, Naturalization Records, 1902-1906
- Worcester County, Clinton, Second District Court of Eastern Worcester, Naturalization Records, 1885-1906
- Worcester County, Court of Common Pleas, Naturalization Records, 1798-1859
- Worcester County, Gardner, First District Court of Northern Worcester, Naturalization Records, 1883-1906
- Worcester County, Milford, Third District Court of Southern Worcester, Naturalization Records, 1900-1903
- Worcester County, Police Court of Fitchburg, Naturalization Records, 1885-1904
- Worcester County, Southbridge, First District Court of Southern Worcester, Naturalization Records, 1898-1905
- Worcester County, Webster, Naturalization Records
- Worcester County, Westborough, First District Court of Eastern Worcester, Naturalization Records, 1892-1906
- Worcester County, Winchendon District Court, Naturalization Records, 1906
- Worcester County, Worcester Police Court, Naturalization Records, 1851-1854
- Worcester County, Worcester Superior Court, Naturalization Records, 1837-1906
- Worcester County, Worcester, Central District Court, Naturalization Records, 1885-1906
Good Luck and Happy Hunting!