06/72   -  03/73                       Gösta Roloff
03/73   -  10/73                       Herwig Münster
10/73   -  04/74                       Hans Brendel
04/74   -  05/75                       Josef Schoßleitner
05/75   -  02/84                       Hans Brendel
04/84   -  07/86                       Dieter Brendel
07/86   -  06/90                       Hans Brendel
06/90   -  03/93                       Oswald Wendling
03/93   -  05/95                       Martin Götzenberger
05/95   -  01/98                       Lore Bickel-Sinner
01/98   -  01/99                       Wolfgang Kaufmann
01/99   -  09/01                       Dr. Peter Pfund
09/01   -  04/02                       Josef Kapfhammer
04/02   -  04/08                       Peter Karsch
04/08                                      Dr. Georg Lohr