I am claiming citizenship through descent from my paternal grandmother. My father was born in 1953, and my grandmother in 1919, several years BEFORE her father became a US citizen.
I have a problem, though. The name on her birth certificate, Iuseppina, differs from the name she used throughout her life (Josephine). I don't believe that she ever legally Anglicized her name...just went about doing it informally, I guess.
How do I assure the consulate and the other authorities that this is, indeed, the same person?
I have the same issue. I e-mailed them at the Chicago consulate, and they responded that Anglicized names are common and that they can "overide" these problems. I found my grandfather's naturalization papers which had a legal name change on the back. The only problem is that he didn't like his middle name, so he had just chosen another. In sum, the "legal name change" was from a name not even entirely correct, with a different middle name than on his Italian birth certificate.
I suspect that there will be some other paper trails which will help us both, such the names of her parents on her Italian birth certificate as well as her death certificate, etc.
Several webiste I have been on, including the Italian consulate, advise to do "an affadavit to amend record." Although I am not entirely sure, it seems that this would get whatever authorities issuing the certificates to actually change the names and reissue the certificates. This seems laborious to me, especially if it is obvious that she is one and the same person through the abovementioned paper trails.
The only consulation I offer both you and myself is that we are obviously not the first people to have these problems, and they have seen it all before. But a lot will depend on the consulate, the person who deals with you, what mood they are in....etc, etc.