Hello I am Sal, Mark's (UK) cousin
Yes, I confirm
Luigi Astarita (Lombardo) was a Guardia Municipale, I think Giovanni your family is originnaly from Sorrento as our family and I know your mom (Carmelina) and one of you cousins from Sorrento.
Talking to my mom there are some family tigh, I think my Grandfather and your Grandfather were cousins.
I will try to find out more ! I will keep you posted.....