Cardone from Rionero in Vulture

I have been looking for relatives in Rionero, or in the USA. My great great grandfather Giovanni Francesco Cardone was born in Rionero around 1883, and came to the US, settling in Pittsburgh, PA. I cannot find his port of entry, however there may be a connection to Cardone's from Lawrence, Mass or Altoona, PA. Antonio Cardone, a relative, came from Rionero in 1904, at age 20.