Johann M. Bohn & Caroline Ernestine (Muller) Bohn would be my Great Grandparents on my father's side. My Grandmother, Wilhelmina Ernestina, is my Dad's mother. I have a document showing that both Johann and Caroline were born in Britenstein, German, he August 15, 1819 and she, August 30, 1828. I think the spelling should be Breitenstein, but I don't find it to be a town in Germany, but Switzerland?