Karen - W.H.B. and Nora Koch Eberhard are my husband's great-grandparents. We believe that Nora was a daughter of Samuel Koch, also had a brother named Sammy. W.H.B. (William Henry Benjamin) was born in Pennsylvania - near Allentown. I don't think David and Catherina came until later on, possibly even after another son Llewellyn and his family came to Ohio. How could I go about getting a copy of the marriage record?