I am a descndant of Barbara Auerbacher who married Isaak Hirsch Loewengard (son of Maier Hirsch Lowengard of Rexingen). Barbara's parents are listed as Loew Auerbacher and Bella. I am not exactly sure how Loew Auerbacher is related to the large Auerbach(er) family in Nordstetten. He certainly is.
Thus I am related to the semi-famous German author Berthold Auerbach, but I don't know how.
The Auerbach and Auerbacher families of Nordstetten can be traced back to Loew Auerbach who was born about 1660 in Auerbach bei Augsburg (which is in Schwaben, Bayern).
Pinkas Hakehillot: Germany: Wuerttemberg, Hohenzollern, Baden edited by Joseph Walk. Published in 1986 by Yad Vashem. 549 pages. (This book is an encyclopedia of Jewish Communities in Germany. It is one volume of a larger set.) This book is entirely in Hebrew, but it has an English Table of Contents. It is available through Yad Vashem. The community of Nordstetten is discussed on pages 78-79.
Books by Berthold Auerbach: Spinoza (1837), Schwarzwälder Dorfgeschichten (1843-54), Barfüssele (1856), Edelweiss (1861), Auf der Höhe (1865).
If you have any information about the Jewish community in this town or have ancestors with the same surname, please contact me.