Passport registers (registri dei passaporti)
Applicant's name, sometimes parents, residence or place of origin, destination and dates. They can link a U.S. immigrant to a home town.
Where: State archives (Questura/provincial records) and some notarial offices; originals often survive in family papers
Years: From 1869 (passports were also needed for internal travel)
How to access: Request with an appointment at the archive. Coverage is incomplete, and many emigrants left without a passport.
Ellis Island / Statue of Liberty-Ellis Island Foundation passenger database
Indexed passenger entries for arrivals, with ordering of arrival records
Where: statueofliberty.org (online) and the Records Discovery Center on Ellis Island
Years: Port of New York arrivals (originally 1892-1924); coverage has since expanded to other ports
How to access: Free online search. Try Italian spellings (Giuseppe, not Joseph) and women's maiden names.
NARA passenger arrival lists
Name, age, sex, marital status, occupation, last residence, U.S. destination, and any relative being joined in the U.S. Race was added after 1903, physical description and birthplace in 1906, and the nearest relative in the home country in 1907.
Where: National Archives (microfilm T715 for New York, 1897-1957; indexes T519 and T612); digitized on FamilySearch (free), Ancestry and Fold3
Years: About 1820-1982, by port
How to access: Search an index such as Ellis Island or FamilySearch, then view the full two-page manifest image.
Ship manifest columns to read closely
Last residence (1891 onward); relative or friend at destination, who paid the passage and money carried (1903); relative or friend in the home country (1907); place of birth (1906 in New York lists). Manifests were prepared by the shipping company before departure.
Where: Manifest images (both pages)
Years: 1891-1924 especially
How to access: Read every column across both pages. The home-country relative and last residence often name the comune.
Declaration of Intention ('first papers')
After 1906: name, age, occupation, physical description, date and place of birth, last foreign residence, spouse, date and port of arrival and ship name, and current residence. Photos from July 1, 1929.
Where: The naturalizing court. Federal court records are at NARA; state and county court records are often in state archives. USCIS holds duplicates.
Years: Standard Form 2202 from September 27, 1906; optional after December 24, 1952
How to access: NARA regional facility for the court's state, the county courthouse, or the USCIS Genealogy Program
Petition for Naturalization and Certificate ('second papers')
The petition followed the declaration (traditionally a five-year process: declaration after two years' residence, petition three years later). Once the petition was granted, a certificate was issued. NARA usually holds declarations and petitions, not certificates.
Where: Court records (NARA for federal courts); duplicate certificates in USCIS C-Files
Years: Before September 27, 1906 any court of record could naturalize; standardized afterward
How to access: No central index exists. Check NARA first for federal courts, then local courthouses.
USCIS Genealogy Program
Copies of naturalization certificate files, immigrant visas, registry and alien files for deceased immigrants
Where: USCIS (online portal genealogy.uscis.dhs.gov)
Years: C-Files Sept 27, 1906-Mar 31, 1956; Visa Files July 1, 1924-Mar 31, 1944; Registry Files 1929-1944; AR-2 forms 1940-1944; A-Files
How to access: Fee-based. Submit an Index Search first, then a Record Request with the file number.
Alien Registration (AR-2) forms
Name and other names used, address, birth date, nationality, physical description, port, date and ship of last arrival, date of first arrival, occupation, employer, memberships, fingerprint and signature
Where: USCIS (microfilm; some originals in A-Files)
Years: August 1, 1940-March 31, 1944
How to access: USCIS Genealogy Program. The A-number may appear on naturalization index cards or in family papers.
U.S. Federal Census 1900-1950
Year of immigration (1900 col. 16, 1910 col. 15, 1920 col. 13, 1930 col. 22); citizenship status 'Al' (alien), 'Pa' (first papers), 'Na' (naturalized); year of naturalization (1920 col. 15); parents' birthplaces
Where: NARA; the 1950 census is searchable at 1950census.archives.gov
Years: 1900, 1910, 1920, 1930, 1940, 1950 (released April 1, 2022 under the 72-year rule)
How to access: Use the immigration year to find manifests, and status changes to narrow naturalization dates. Treat remembered dates with caution.
WWI draft registration cards
Full name, birth date and place, race, citizenship, occupation, physical description and signature
Where: NARA (copies can be ordered online)
Years: June 5, 1917; June 5, 1918 (plus August 24, 1918); September 12, 1918
How to access: Search by name and residence in 1917-1918.
WWII Fourth Registration ('Old Man's Draft')
Name, registration number, age, birth date and place, residence and physical description. Cards for some states do not survive.
Where: Originals at the National Archives at St. Louis; images on Ancestry and Fold3
Years: April 27, 1942 (men born 1877 to February 16, 1897)
How to access: Online databases, or request copies from NARA St. Louis
Social Security application (SS-5), Applications and Claims Index, NUMIDENT
The SS-5 application gives birth date and place and the parents' names. SSA releases parents' names only with proof of their death or their consent, or when the person would be 100 or older.
Where: Social Security Administration (FOIA); indexes on Ancestry and FamilySearch (NUMIDENT 1936-2007)
Years: 1936 onward
How to access: Submit a FOIA request to SSA (Form SSA-711 optional; fees apply). A photocopy of the original is more complete than a computer extract.
Social Security Death Index (SSDI)
Name, Social Security number, birth and death dates and last residence. Coverage is incomplete for earlier decades.
Where: Free on FamilySearch
Years: Mainly deaths from 1962, with a few from 1937
How to access: Search by name, then order the SS-5 for more detail.
City directories
Residents' names, addresses and occupations, and sometimes spouse or 'widow of'. Useful for tracking moves year by year and estimating arrival.
Where: Public and university libraries, the Library of Congress, FamilySearch (U.S. City and Business Directories, 1749-1940), Ancestry
Years: Usually annual from the early 1800s
How to access: Search online collections, or browse by city and year.
Newspapers and obituaries
Obituaries, death notices and community news
Where: Library of Congress Chronicling America (free) and local libraries
Years: Chronicling America covers papers published through 1963
How to access: Free full-text search on Chronicling America, plus local library microfilm.