Please, Julie, could you give us more information? Where in italy are they from? Those surnames seem to be mostly from the Piedmonte Region, but since records are found on the local level we need to know the town or village in order to research.

Did they immigrate, if so when and where? If you do not know place of origin you will need to research their naturalization or military records in the U.S. This has some great links and webinars worth watching:https://www.familysearch.org/wiki/en/Italy_Emigration_and_Immigration

With more information we will be happy to see if we can help.