I've wondered if we are related. If you look at the manifest it states Guiseppe did not embark. Although it kind of looks like it belongs to someone else, also.
Do you know for sure they both landed in the states?
Are you sure they are brothers? Did your grandfather talk about any other relatives? They could be cousins or even not related. Why are they going to different places? I would be happy to share what little Costanza info I have. Thanks for answering.