My greatgrandparents[ Giuseppe and Giovanna[Sineni] Barbaccia were from Caccamo and when Giuseppe first came to America, he was married in manhatten to Giovanna's older sister who later died in childbirth. Their wedding was witnessed by a Sandi Lacorte. This was in 1901.Do you have any link to this person??? I thinkl it could have been a relative of theirs since usually wittnesses to marriage must be someone who you have known a while.