Thanks; amazing being able to see the street just like that.
I saw your PM; but if it says that Peter Ameglio lived there in 1995-96, it is certainly not my grandfather, since he died in january 1981 (and single).
I've found on ellisisland.com some Amerios who came from San Marzano Oliveto, and a few of them went to stay with a cousin called Leonardo Terzano; what's interesting is that my great-grandmother's mother was called Amalia Amerio (née Terzano); however, I have not seen the original document so maybe her name was Angela (on ellisisland there are a few Amerios, issue of Pietro and Angela), and "Amalia"'s husband was certainly Pietro...