FamilySearch - New York, Western District, Naturalization Index, 1907-1966
Card index to approximately 48,000 petitions for naturalization in the Western District of New York. The District Court of the Western District of New York was located in both Buffalo and Rochester, New York. The cards are arranged alphabetically by the surname and given name, and contain the petition number, date of petition, and sometimes the A.R. (alien registration) number. NARA publication M1677: Alphabetical Index to Petitions for Naturalization of the U.S. District Court for the Western District of New York, 1906-1966. Index supplied by Fold3.