I start to sarch on here for the same idea and I saw your message.
My gran mother`s name was Marzano & she lived in Caivano Italy. She had some parents: her brother from Chicago or NY who died. When he was still alive he used to send dollars in an envelope with a letter. I know it from my mother Costanzo Giuseppa doughter of Marzano Carmela (nick name: A Regina) & Costanzo Giuseppe. My gran mother died in 1980 because of an earthquake.
My name is Antonio son of Costanzo Giuseppa. I live in london. If you like to know more I can try to ask my mother who lives in Cardito Naples.