Salvatore Cardella's parents were added by Catherine Mahoney as "MATTEO CARDELLA" and "ANNA CARDELLA", but Linda Davenport's tree lists Salvatore Cardella's parents as Giovanni Cardella (born about 1729 and died September 21, 1799) and Anna Toia.
There are no other individuals linked to these individuals and no sources documented...I am going to side with Linda Davenport's tree unless we have some other info to prove otherwise.