United States, Index to Alien Case Files, 1940-2003
This is an index to Alien Case Files housed at the National Archives Regional Office in Kansas City, Missouri. Under the Alien Registration Act of 1940, immigrants in the United States were required to register and be fingerprinted. The Immigration and Naturalization Service (INS)—now the U.S. Citizenship and Immigration Service (USCIS)—drew upon the 1940 Alien Registration Form (AR-2) to create Alien Case Files beginning in 1944. Immigrants recorded in these files come from all over the United States. Some files from aliens living in the immigration districts of Guam; Honolulu, Hawaii; Reno, Nevada; and San Francisco, California are housed in the National Archives Regional Office in San Bruno, California and may not be included in this index.
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United States, Index to Alien Case Files
What is in This Collection?
This collection consists of the Index of Alien Case Files housed at the National Archives Regional Office in Kansas City, Missouri. Under the Alien Registration Act of 1940, immigrants in the United States were required to register and be fingerprinted. The Immigration and Naturalization Service (INS)—now the U.S. Citizenship and Immigration Service (USCIS)—drew upon the 1940 Alien Registration Form (AR-2) to create Alien Case Files beginning in 1944. Immigrants recorded in these files come from all over the United States. Some files from aliens living in the immigration districts of Guam; Honolulu, Hawaii; Reno, Nevada; and San Francisco, California are housed in the National Archives Regional Office of San Bruno, California and may not be included in this index. The Affiliate Record Number refers to the Alien Registration Number. For additional information on the alien case files click on the link below for NAID 4488912.
Related National Archives Collections
- NARA Collection Description Alien Case Files, 1944-2003 NAID 4488912
- NARA Collection Description Index to Alien Case Files at the National Archives at Kansas City NAID 5821836
- NARA Alien Case Files, 1944-2009
- NARA Alien Case Files, 1944-2003
Alien Registration Forms, 1940-1946
Alien Statements, 1942-1946
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:
- Alien registration Number (Affiliate Record Identifier)
- Last Name
- First Name
- Alias
- Date of Birth
- Sex
- Date of Entry
- Country of Birth
- Father's Name
- Mother's Name
- Naturalization Date
- Naturalization Court
- Naturalization Location
Collection Content
Sample of indexed information:
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Collection Details
Location of Original Records
National Archives and Records Administration
"United States, Index to Alien Case Files, 1940-2003." Database. FamilySearch. http://FamilySearch.org : 23 August 2025. Citing "Index to Alien Case Files at the National Archives at Kansas City, ca. 1975 - 2012". NAID 5821836. Records of U.S. Citizenship and Immigration Services, 2003 - 2004, RG 566. National Archives at Kansas City.
