The second name maybe a sopranome or nickname to identify the family line when many in the town have the same surname

I believe in 1928 it was still in Italy. I could be wrong. You should Google it

Angel research is located in Sora and can easily locate the necessary documents For you. We may also be able to assist you on determination your eligibility under the new rules.

An orphan would bear his father or mother surname. And abundant baby would be given an invented name by the town office club. There is lots of information on abandoned babies and fans on my website angelresearch.net.

You can search for the catasto on the website for the state archives of Naples

Italian women do not change their surname on marriage. They often assumed their husband’s surname in another country where this was common. The ship manifest will always always reflect their birth surname.

Maria Luigia without a comma between the two names is actually just one name. It may reference to mother, but it may also reference the father.
There are articles on my blog. I’m just the subject.

Do both

Foundlings were often placed with lactating woman for the first two years after which, if she didn’t want to keep a child, he was placed either in an orphanage or with another family

Sora have some great records that would give you lots of information on the family that stayed in Italy.

Since they are half siblings maybe he was the stepfather

There is apost on my website that will help you understand cemetery rules in Italy.
Rest in peace. At angelreseach.net

Check the antenati website. Instructions on how to use are on my website. Angelresearch.net

It's NOT temporary. Copy the image link and add it the the MEDIA in your family tree program. The link takes you straight to the image.

San Donato civil records after 1865 are not on line. you have to write to the Comune.
Parish records are available. Digitized copies can be found at the DIocese offices. They won't do research! If you need help with this contact me privately.