Pennsylvania, Allegheny, Pittsburgh, Naturalization Card File Index, 1906-1990
These records are a card index to the naturalization petitions found in the U.S. District Courts and Circuit Courts in Pittsburgh, Pennsylvania for the years 1906-1990. The names in this collection are not always in strict alphabetical order. Microfilm originals of these records are in the clerk's office of the U.S. District Court in Pittsburgh. For the actual petitions, check the author-title catalog under "United States. District Court (Pennsylvania: Western District), Naturalization Petitions, 1820-1931" and "United States. Circuit Court (Pennsylvania: Western District), Naturalization petitions and records, 1910-1911."