Maine, United States Naturalization Records, 1790-1991
This collection includes naturalization records such as Petitions for Naturalization, Declarations of Intention, Oaths of Allegiance, and Military Petitions filed in the United States District and Circuit Courts of Maine from 1790 to 1991. Images are originally housed at The National Archives and Records Administration Boston Branch. This collection is associated with NARA Record Group 21.
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Maine, United States Naturalization Records
What is in This Collection?
The records consist of naturalization declarations and petitions for the U.S. District Court for the Southern Division and the Northern Divisions of the state of Maine for the years 1918-1991. These records correspond to the following NARA record sets and are part of Record Group 21 in the Records of District Courts of the United States.Additional records and/or images may be added to this collection in the future.
See United States Naturalization and Citizenship for more information on United States naturalization records.
Southern Division Portland, Cumberland County
- Petitions and Records of Naturalization, 1945-1991 NAID 6250662
- Alien's Declarations of Intention to Become Citizens, 10/6/1911-1984 NAID 2678471
- Petitions and Records of Naturalization for Military Personnel, 7/1918-2/1919 NAID 2826558
- Index to Overseas Military Petitions, 1943-1955 NAID 6254871
- Women's Repatriation Oaths of Allegiance, 1937-1967 NAID 6254827
Northern Division, Bangor, Penobscot County
- Declarations of Intention, 1942-1943 NAID 6266737
- Petitions and Records of Naturalization, 1942-1989 NAID 6277117
To Browse This Collection
| You can browse through images in this collection using the waypoints on the Collection Browse Page for Maine, United States Naturalization Records, 1918-1991. |
What Can These Records Tell Me?
The following information may be found in these records: Before 1906, the information recorded differed widely and often didn't mention the immigrant's town of origin or parents' names. These records may contain:
- Arrival date and port of entry
- Name and age of immigrant
- Age of immigrant
- Current residence of immigrant
- Country of origin or allegiance
In 1906, the Bureau of Immigration and Naturalization was created and later renamed Immigration and Naturalization Services or INS. Some results included standardized forms throughout the country and copies of naturalization papers sent to the INS in addition to the court keeping a copy.
After 1906 records contain more detailed information about the immigrants and their families.
- Name of declarant
- Date of Declaration of Intent
- Age and occupation of declarant
- Physical description of declarant
- Declarant's date and place of birth
- Declarant's marital status
- Spouse's name
- Spouse's date and place of birth
- Names of children
- Children's dates and places of birth
- Date of arrival and port of entry
- Name of ship
- Departure date and port of departure
- Current U. S. residence
- Last foreign address
Collection Content
Sample Image
1975 Naturalization Record
Collection Details
Location of Original Records
National Archives and Records Administration
"Maine, United States Naturalization Records, 1790-1991." Database with images. FamilySearch. https://FamilySearch.org : 23 May 2026. Citing NARA microfilm publication RG21 (Washington, D.C.: National Archives and Records Administration, n.d.).
