Hi Clair
I connect a little to 3 names in your list: Palumbo, Savino and Lorusso, but I have nothing showing those families connecting to each other.
My Palumbos were from Triggiano but before that they were from Mola di Bari. One of them Francesco (1884-1927) married my great-aunt Orsolina Santoliquido (1902-1992) but he failed to pay his tribute and was shot to death in his car. They had one adopted son Vito who died at 38. Some descendants live in Wisconsin.
Which town was your Savino born? Mine are all from Triggiano but it's not the most common name there at any rate. I checked the Triggiano civil records extract (which includes a lot of Triggiano people marrying in other towns) and there are only 3 Palumbo marriages, 1 in Chicago (mentioned above) and 2 in Triggiano not involving your Michele and Antonia. What town did they marry in?
As for Lorusso, let me know who your Lorusso connections are and if they are from Triggiano.
Thanks for writing.
Dan