You're welcome... I love help people here (and you're ancestors were coming from my region I'm even more happy!)... Unfortunately both years 1881 and 1883 for the births registrations in Cicagna are missing on Ancestry.com... but you can write to the town hall of Cicagna and ask them the birth act of Pietro...
here you can find help about writing requests to Italy (I believe Pietro was born on 1881 or 1883, considering the arrival manifest...)
It's been a few years since I last posted...yesterday I attempted to use the email that you provided (firstname.lastname@example.org) and it was returned with "fatal errors". Are you now aware of another way I can contact someone directly? My experience with Italy and Sicily is to be ignored when in the past I have sent letters or general emails.
A trip is planned in June to visit Cicagna and obtaining as much information as possible, i.e. cemeteries where people were likely to have been buried at the turn of the century to maybe 1925, would be very helpful. Of course birth records around 1840 would be nice too! I was hoping to get this assistance from Ana Grafe.
Thank you for your consideration and assistance/advice.