Dear Roger, My father was born and raised on the East Side of Bpt and, like everyone else with the names you mentioned, is from Castelfranco. He is the youngest of four children and was born in 1916. His father would have been about the age of Donato.My father says he remembers the people you mentioned, and that "they all hung out together". He couldn't give me any more pertinent information (ie. what did Donato dofor a living, etc.)However, if you have some specific questions I might be able to get more information. By the way, he didn't know anyone by the name of "Verrillo"--anyone he knows/is related to go by "Verrilli".
My aunt might also be a good source of information, if you have specific questions. She's not from the same part of Italy, but was married to my father's oldest brother. She's 93 now but has a memory and intellect that puts everyone around her to shame. If she ever met those people, she'd remember them!
By the way, my parents both mentioned that there was a Ratzenberger who owned a restaurant in Fairfield (near the Bpt line) many years ago.And you probably know that there is an actor by the same name from Bpt --I assume you're related? I'll help in any way I can. I've been doing my family's genealogy and find the subject fascinating-- Best, Nina Riccio