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Record Name
New York, U.S., State and Federal Naturalization Records, 1794-1943	676
U.S., Naturalization Record Indexes, 1791-1992 (Indexed in World Archives Project)	464
Illinois, U.S., Federal Naturalization Records, 1856-1991	360
Rio de Janeiro, Brazil, Immigration Cards, 1900-1965	326
California, U.S., Federal Naturalization Records, 1888-1991	199
U.S., Naturalization Records Indexes, 1794-1995	199
New York, U.S., Naturalization Records, 1882-1944	195
New York, U.S., Index to Petitions for Naturalization filed in New York City, 1792-1989	137
Alsace-Lorraine, Germany, French Citizenship Declarations (Optants), 1872	130
Massachusetts, U.S., State and Federal Naturalization Records, 1798-1950	127
U.S., Naturalization Records, 1840-1957	103
Pennsylvania, U.S., Federal Naturalization Records, 1795-1945	98
Halle, Germany, Census and Citizen Lists, 1400-1915	90
U.S., Index to Alien Case Files,1944-2003	86
Florida, U.S., Naturalization Records, 1847-1995	71
Belgium, Antwerp Police Immigration Index, 1840-1930	61
Lübeck, Germany, Citizenship Register, 1591-1919	54
New York, New York, U.S., Index to Declarations of Intent, 1907-1924	52
Wisconsin, U.S., Federal Naturalization Records, 1848-1992	49
Connecticut, U.S., Federal Naturalization Records, 1790-1996	48