Document guide
Giuseppe became Joseph.
Now what?
Most Italian American families have a version of this story. The name changed somewhere between Naples and New York. For Italian citizenship, the consulate needs to understand that Giuseppe on the 1892 birth certificate and Joseph on the 1920 marriage certificate are the same person.
Updated: April 2026
The legend and the reality
The story everyone knows: an Ellis Island official couldn’t pronounce the surname and changed it on the spot. In reality, Ellis Island inspectors worked from ship manifests filled out at the port of departure — they didn’t ask names verbally. Names changed later, gradually, through adaptation.
An immigrant would introduce himself as Giuseppe at the comune. At work in America he became Joseph. On the census, the enumerator wrote down what they heard. On the marriage certificate, the groom signed however he preferred. No single moment of change — a slow drift across documents.
This is why your great-grandfather might appear as Giuseppe, Joseph, Josef and Jos. across four different documents. All him. None of them wrong.
Most common name changes
These are the changes we see most often in citizenship cases. If your ancestor has one of these, you’re not alone.
| Italian name | American version | Note |
|---|---|---|
| Giuseppe | Joseph, Joe | The single most common |
| Salvatore | Sam, Sal | Shortened on arrival |
| Giovanni | John | Direct translation |
| Vincenzo | James, Vincent | James is less obvious but frequent |
| Pasquale | Pat, Patsy | Phonetic adaptation |
| Concetta | Connie | Abbreviation |
| Calogero | Charles, Carl | No resemblance but documented |
| Gaetano | Guy, Tom | Practical adaptation |
Surnames changed even more than first names: DeLuca → Lucas, Russo → Russell, Ferraro → Ferrari, Di Giovanni → Johnson.
What the consulate needs
The consulate doesn’t expect every document to show the same name. They know names were changed. What they need is proof that the different names refer to the same person. In practice, this means birth dates, parents’ names and places need to match across documents.
If the Italian birth certificate says “Giuseppe Moretti, nato il 14 marzo 1892, figlio di Antonio e Maria” and the American marriage certificate says “Joseph Moretti, born March 14 1892, son of Anthony and Mary” — the connection is clear. Same day, same parents (translated), same surname.
How discrepancies get resolved
From simplest to most formal. In most cases, the first option is enough.
Internal matching
If the dates and parents match across documents, the consulate officer notes it themselves. You don’t need to do anything extra. This resolves most cases.
Sworn affidavit
If the match isn’t obvious, prepare a sworn statement before a notary public explaining the discrepancy. The notary authenticates it. Then you get it apostilled and translated.
Official annotation
If your ancestor legally changed their name (by court order), the name change decree is the bridging document. In some states, you can also ask the vital records office to add an AKA annotation to the original certificate.
When the surname changed
First name changes are almost always resolvable. Surname changes are harder because the surname is what links the generations. If your great-grandfather was Ferraro in Italy and your grandfather appears as Ferrari in American records, you need to prove the continuity.
Bridging documents
A document that shows both versions. The ship manifest often lists the original surname, while the census shows the adopted one. If you have both with matching dates and ages, the link holds.
Court records
If the surname was legally changed, request the decree from the county court. Court records are public in most states.
Worst case
No bridging document, no court decree. The consulate may accept a sworn affidavit combined with circumstantial evidence (census records, school documents, church records). Not guaranteed — it depends on the officer.
Three things to do now
Make a name variation inventory
Write down every version of the name you find in every document. Include the source and date. When you present them to the consulate, this table shows the path from Giuseppe to Joseph clearly.
Don’t try to correct historical documents
The 1892 birth certificate says Giuseppe. The 1920 census says Joseph. Both are correct in their context. Don’t try to retroactively amend the American certificate — it’s not necessary and can create confusion.
Focus on dates, not names
Consulates know names change. What they’re looking for is consistency of dates and parents across documents. If March 14 1892 appears on every document and the parents match, the name is secondary.
Common questions
Will the consulate reject my application over a name discrepancy?
Not automatically. Consulates see name discrepancies in nearly every descent-based citizenship case. If the birth dates, parents and places match, the discrepancy is manageable. It only becomes a problem if there’s no way to show the two name versions refer to the same person.
Do I need a lawyer to resolve discrepancies?
In most cases, no. A sworn affidavit before a notary public is enough. You’d only need a lawyer if the discrepancy is complex — completely different surname with no bridging documents — or if the specific consulate requires it.
My family’s surname was legally changed — does that break the chain?
No. A legal name change by court order does not affect citizenship. Jure sanguinis citizenship is based on biological descent, not the surname. But you’ll need the court decree to connect the documents.
Can I use a DNA test to prove descent?
No. Italian consulates do not accept DNA tests as proof for citizenship purposes. You need the full documentary chain: birth, marriage and death certificates linking every generation.
Sources
- Direct experience with Italian consulates in the US
- USCIS Form G-1041A \u2014 naturalisation records
- archives.gov (NARA) \u2014 ship manifests, immigration records
- libertyellisfoundation.org \u2014 Ellis Island records
This is an informational guide, not legal or immigration advice. Each consulate may have specific requirements. Always verify with the relevant consulate.