I see, thank you for all your help!

One more question: are the "d"->"t" and "s"->"z" letter changes a recognized change in orthography such that they would be reflected in the estratto dell'atto di nascita? If not automatically reflected in the estratto, could I provide the estratto dell'atto di matrimonio from Termini to Trabia to ...

Thank you! I wondered about there possibly being a "z" in the surname but couldn't decide whether there was a similar flourish on other letters I thought should also be "s". Also, thanks for mentioning that the other Salvatore is a cousin - I saw him as well but concluded he wasn't the person I was ...

This is the marriage record for the Salvatore Sunseri I'm looking for (this should be redirecting to page 64):
https://www.antenati.san.beniculturali.it/ark:/12657/an_ua36073532/LDEYWdE
His parents' names are Giuseppe Sunseri and Maria Dentici. I also think that he was born on March 9, 1867; on ...