My mother's maiden name was mross. Her dad grew up in Racine, WI with his father, mother, and brother. Do any of these names sound familiar to you?
Ernest Mross (dead)
Helene (Porter) Mross (dead)
Gordon Mross (alive)
Roland Mross (alive)

Those are the only people I know, I can't go back any farther. Unless I ask my grandpa. Thanks