Lothar Krieger
  since 2007

Kai-W. Ahrens
  since 1999

Albert Lundt
  since 1995

Robert Lorenz-Meyer
  since 1993

Peter B. Haan
  2000 - 2004

Manfred Kloevekorn
  1993 - 1999

Carsten Müller
  1980 - 2000

Wolfgang Fischer
  1980 - 2000

Wolfgang Westendorf
  1980 - 1992

Burchard Kreisch
  1962 - 1984

Ernst-Roland Lorenz-Meyer
  1960 - 1998

Dr. Heinrich Riensberg
  1933 - 1980

Paul Lorenz-Meyer
  1926 - 1961

Christian Russ
  1926 - 1934

Ernst Russ
  1890 - 1957