Naturalization records

Naturalization records document an immigrant's formal transition to American citizenship and often contain information about birthplace, date of emigration, and sometimes names of witnesses and family members. Heritage Books carries published indexes and abstracts of naturalization records from across the United States, spanning the colonial period through the early 20th century. Because naturalization could occur in any court of record before 1906, these records are scattered across thousands of jurisdictions and published abstracts are often the most practical means of access.