I just started serching my family tree and alot of the things you mentioned are the same as I'm finding. My Grandfather was Anthony ( Tony ) Piserchia, his wifes name was gladys. I can remember my grand mother often mentioning the name Calabrese. if I remember correctly we had a relitive with that name the headed up the unions in NJ I think his name was Mike Calabrese. My great garandfather was Guiseppe Piserchia and his wife's name was Maria. my mother was named after her. my great great grandfater was also named Guiseppe Piserchia and his wife was Mary Theresa Napolilo. of course my great grandfater was born in italy in 1866 and came to US, where they lived in Jersy City. I rember Pavonia ave and montgomery street from when I was just a kid. I'm now 54. My grandfater owned a reseraunt called the Gem and just about the whole block, on railroad ave and brunswick street. Based on the small towns you mentioned in italy I have a feeling we may be related in someway. because thats where my clan came from as well.
since your father is still alive maybe you could ask hime if he knew Tony and Gladys Piserchia from downtown JC. I noticed your grandfather and mine had the same first names, but of course Giuseppe was probably one of the most common names. I think you said your fater was born in Salerno, maybe he would remember the Piserchia's from there. I,d love to know if any of your old Records from italy have any of the piserchias in it. worst case, Id be willing to bet they were all frends and possably took the boat together. My Great Great Grandfather came over first some time around 1845, then he waqs very intrimental in bringing many italian families over afterwords. what I've been told was he brought them over and had jobs and homes ready for them. what ever that means...
look forward to hearing from you.