Stumble upon this by accident and it seems that your message is fairly old..however if by chance you are still watching...
My dad was born in Avelino Italy, town of St. Martino. His name Luigi Tedesco.
His father, my grandfather was Giovanni Antonio Tedesco, and he was known as Antonio.I believe he also originated in Avelino.My grandmother was Maria Rosa (tedesco).Been a very long time and at this moment do not recollect her maiden name.
My father still has siblings and family in Avelino.
We live in Toronto, Canada.
Let me know if you find there is a match to what you are looking for.