Massachusetts, Naturalization Index, 1906-1966

Card index to naturalization petitions of United States and District Courts for the District of Massachusetts, 1906-1966. Index created by Footnote from NARA microfilm publication M1545, Index to Petitions and Records of Naturalizations of the U.S. and District Courts for the District of Massachusetts, 1906-1966. Original NARA Title is Index to Petitions and Records of Naturalizations of the U.S. and District Courts for the District of Massachusetts, 1906-1966.

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Massachusetts, Naturalization Index

What is in This Collection?

This collection contain images of naturalization petition card indexes in the United States Circuit and District Courts of the District Massachusetts. The cards are arranged alphabetically by surname and are in two parts. The records are located at the National Archives New England Region.

  • Index, 1906-1926, Rolls 1-27
  • Index, 1925-1966, Rolls 28-115

This card index indexes part of Petition and Records of Naturalization ,12/1790-2/1991 NAID 595176

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General Information About These Records

The actual naturalization volumes are on printed forms and are often typewritten

While there were various types of naturalization records, the Declaration of Intent and Naturalization Petition usually had the most complete genealogical information.

The first naturalization act was passed in 1802. Immigrants to the United States were not required to apply for citizenship. Of those who did apply, many did not complete the requirements for citizenship.

Naturalization to become a U.S. citizen was a two-part process: the Declaration of Intent to Naturalize, or First Papers, and the Naturalization Record (including the Naturalization Petition), or Final Papers. The First Papers were normally filed five years before the Final Papers because of the five-year residency requirement to become a citizen.

No centralized files existed before 1906. In 1906 federal forms replaced the various formats that had been used by the various courts. Copies were sent to the Immigration and Naturalization Service (INS), creating a central file for naturalization papers. The INS is now known as the U.S. Citizenship and Immigration Services (USCIS). Naturalization records are generally well preserved, but some records may have been lost to fire or other disasters.

Naturalization is the process of granting citizenship privileges and responsibilities to foreign-born residents. New York’s counties recorded naturalization procedures in the court records as legal proof of citizenship. The courts handling naturalizations changed several times so the card index was created as a way to quickly access specific records.

The index is very accurate and the information that was current at the time of naturalization was usually reliable. However, there was always a chance for misinformation. Errors may have occurred because of the informant’s lack of knowledge or because of transcription errors or other circumstances.

Additional records and/or images may be added to this collection in the future.

What Can These Records Tell Me?

The following information may be found in these records:

Naturalization card

  • Name of immigrant
  • Age
  • Birth date
  • Date and place Certificate of Admission was issued
  • Petition number
  • Spouse's name (sometimes)

Collection Details

Record Type: Legal
388,086 Records
486,026 Personas
388,086 Images

Location of Original Records

National Archives and Records Administration

Cite This Collection

"Massachusetts, Naturalization Index, 1906-1966." Database. FamilySearch. http://FamilySearch.org : 13 February 2025. From "Index to Petitions and Records of Naturalizations of the U.S. and District Courts for the District of Massachusetts, 1907-1966." Database. Fold3.com. http://www.fold3.com : n.d. Citing NARA microfilm publication M1545. Washington, D.C.: National Archives and Records Administration, n.d.