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Record Name
Halle, Germany, Census and Citizen Lists, 1400-1915	617
New York, U.S., State and Federal Naturalization Records, 1794-1943	300
U.S., Naturalization Record Indexes, 1791-1992 (Indexed in World Archives Project)	161
Illinois, U.S., Federal Naturalization Records, 1856-1991	114
Massachusetts, U.S., State and Federal Naturalization Records, 1798-1950	88
Rio de Janeiro, Brazil, Immigration Cards, 1900-1965	85
New York, U.S., Naturalization Records, 1882-1944	75
California, U.S., Federal Naturalization Records, 1888-1991	66
U.S., Naturalization Records Indexes, 1794-1995	57
New York, U.S., Index to Petitions for Naturalization filed in New York City, 1792-1989	55
U.S., Naturalization Records, 1840-1957	54
Pennsylvania, U.S., Federal Naturalization Records, 1795-1945	48
Washington, U.S., County Naturalizations, 1878-1974	38
Belgium, Antwerp Police Immigration Index, 1840-1930	31
U.S., Index to Alien Case Files,1944-2003	22
Nebraska, U.S., Federal Naturalization Records, 1835-1987	21
Ohio, U.S., Naturalization Petition and Record Books, 1888-1946	21
Alsace-Lorraine, Germany, French Citizenship Declarations (Optants), 1872	20
Washington, U.S., Petitions for Naturalization, 1860-1991	19
Oregon, U.S., County Court Naturalization Records, 1840-1982	16