By chance I found that one of yr ancestors was called Giovanni Cin, same as my mother's father. Pls. consider:
1) Cin is a very-very rare name in Italy, localised in a specifical and restricted geographic area.
2) The mother G. Cin was called Vittoria De Nardi.

Both were born and died in Italy, and have never been in america, but I do not know if some of their brothers/sisters went.

I think there is strong possibility that we are in some way parents.
Would you like to contact me? plutonos@libero.it

Ciao.