I'm weighing in on the family name...representing the Krebsbachs EAST of the Mississippi, namely Detroit. We are descendants of Johann Nicolaus Krebsbach, a schoolteacher from Leimbach, Germany (near Andernach in the Rheinland-Pfalz). There is a book with genealogy dating from Cord ab Hagen in the 1400's, and most - if not all - Krebsbach origins can be found in that publication.
There are still Krebsbachs residing in the town of Obermendig (by Mayen) and in other areas close by. I have visited them and found family history and sites as well as good food and great beer.
I'm in the process of "cleaning up" my family files prior to publishing my tree on Ancestry...it's a lengthy task.
Feel free to contact me...I LOVE talking geneaolgy!
Judy Krebsbach PolesnakPapp9@aol.com