Coradi, Zanella decendants from Western PA

My mother's family came over from Northern Italy. The modern day name of the region is Trentino-Alto which was formerly part of Austria. Many of my ancestors are listed as Austrian nationals but Northern Italian as the "race" in Ellis Island documents. Most arrived in the USA and went to Western Pennsylvania.
I am hoping to find connections to my tree and I am willing to share information that I have.