I find it sort of odd that we wouldn't be related for 2 reasons.
1. My William Benjamin Gross is also from Germany.
2. Gross is a Jewish Surname from Germany..
William had 5 boys, Alfred (my grandpa), Edward, Isaac, Jackie and Abraham.
Where the others lived or if William Benjamin Gross moved to Ohio or not I don't know.
But we can both agree that the chances of 2 identically named William B. Gross from Berlin, Germany are kinda SLIM.
To be 100% honest with you, I think I'm gonna spend the money and do a DNA test to see who all in the world I'm related to, that seems to be the easiest way, IMO.