Thanks very much for the helpful advice and websites you listed. I had not come across those yet.

I have pieced together all I can about my relatives who immigrated to the US. I have traced them back to what I think are 3 towns in Sicily.

Gammicchia goes back to Trapani and Monte San Guiliano (Erice)

Fanara goes back to Trapani and Erice as well

Pupillo and Franzone go back to Partinico, I ...