[Marano NYC]

There is a whole field of study in this area. The most interesting article pointed to traces of Ladino . Ladino is an almost extinct Jewish Patios dialect . It is the sephardic version of Yiddish.
There are a range of people with ties to the Jewish Community.

[Clemenza]

Let's also not forget that a large portion of the Polish nobility, perhaps a majority, had Jewish lineage. It was common practice for socially prominent Jews in Poland to convert in order to intermarry into the elite.