I posted below, under the title "Davidow Agosti, Trento IT, ca 1860", and again in reply to Kristina Agosti, above under "Agosti, Trento IT ".
It sure seems there are/were a lot of Agosti's near Val di Non, Trentino.
I don't see a match in my tree with any of the names you mentioned - Rudolph Agosti, Isodoro Agosti, Carlotta Filipi.What are the corresponding year's of birth/death?Do you see any names in your tree that match those listed above? Again it certainly sounds as if we could be related.
And funny how my father moved to Pennsylvania, by way of Ohio - just opposite yours.He and most of my family still live in Alaska, where I was born.Just call us the AK Agosti's.