Research Our Records

Citizenship Reference Reports

Naturalization records document the process by which aliens obtained U.S. citizenship. The first federal naturalization law enacted in 1790 (1 Stat. 103) permitted foreign-born persons (aliens) to become U.S. citizens through a two-step process administered by any court of record. Additional legislation was enacted over the years. Significant Federal oversight began in 1906 when Congress addressed problems of widespread fraud and irregularities in the naturalization process by an act of June 29, 1906 (34 Stat. 596), that also established the predecessor agency to the Immigration and Naturalization Service (INS). Citizenship Reference Reports describe research strategies for some of the more frequent topics and records relating to naturalization.

Click on the title to view a PDF version of the reference report.

Research Guide to Selected Bureau of Naturalization Case and Correspondence Files, 1906-1946

PDF files require the free Adobe Reader.
More information on Adobe Acrobat PDF files is available on our Accessibility page.

Research Our Records >

The U.S. National Archives and Records Administration
1-86-NARA-NARA or 1-866-272-6272