I have had some luck...see below.
I was in Salerno at Easter looking for the 2 missing Vietri Chruch record books. There are three good sources of research that I found for Salerno....
Salerno University, Centro Studi Universita di Salerno (Fisciano).
Curia Arcivescovile Salerno, Via Roberto ol ...

I’m reluctant to pass on my unofficial modified copy of the database, as this needs to be maintained at a single source, in the village by Rocco Buongermino….. and eventually published online. I hope the extracts will steer you in the right direction for your research, but you will eventually ...

From about 1600 to 1800 there are church records (hand written in Latin), and distant cousins from Las Vegas, Steve and Anita Canfield have made photograph copies of all of the church records.
From about 1800 there are community held records (hand written in Italian located at the town/village hall ...

There was a Antonio Trimarco born in Vietri in 1888.
Parents were not from the village.
F Carlo Trimarco
M Lucrezia Caso

Hi Trimarco, I think this is your family information from the Vietri Births Database, based on Carlo and Pasquale having the same parents. Pasquale had 11 siblings. Please let me know if this is the right family and I will have a look through for other records in the database.
Hope this helps ...