There is a Kahl and a Kleinkahl in Bavaria. Both Catholic church books are filmed at the Bistumsarchiv of Würzburg. Have they been Catholic? I didn`f find films at LDS.
For the town Kahl look at:http://de.wikipedia.org/wiki/Kahl_am_Main
For Kleinkahl look at:http://de.wikipedia.org/wiki/Kleinkahl
I didn`t find Bieber/Burber?!