Eike Schmidt

2016 - 2018

2004 - 2016

Ulrike Muth

1995 - 2004

Udo Ehmke

1992 - 1995

Eggert Kühl

1986 - 1992

Egon Lemmer

1974 - 1986

Hartmut Müller

1950 - 1974

Christian Paasch

1933 - 1940

Hans Koch

1926 - 1933

Hermann Maas