| Fried Drees | 1913 - 1967 |
| Dr. Gerd Bookjans | 1907 - 1977 |
| Wilhelm Hobirk | 1912 - 1977 |
| Bernard Siemer | 1914 - 1982 |
| Heinz Vos | 1930 - 1986 |
| Dr. Richard Hartmann | 1917 - 1986 |
| Heinrich Olberding | 1926 - 1986 |
| Hans Graf | 1913 - 1987 |
| Dr. Günter Gembusch | 1913 - 1989 |
| Joseph Fröhle | 1910 - 1994 |
| Albert Peus | 1915 - 1996 |
| Wilhelm Kreutzmann | 1917 - 1998 |
| Dr. Gerhard Lindloff | 1928 - 1998 |
| Dr. Franz-Josef Schröder | 1937 - 1998 |
| Lothar Kallerhoff | 1921 - 1998 |
| Bernard Beckermann | 1915 - 2000 |
| Werner Guth | 1917 - 2005 |
| Hermann Olberding sen. | 1923 - 2006 |
| Manfred Kampa | 1938 - 2008 |
| Hermann Olberding jun. | 1953 - 2010 |
| Prof. Dr. Helmut Ottenjann | 1931 - 2010 |
| Gerd Gemmel | 1938 - 2011 |
| Heinz Josef Imsiecke | 1937 - 2014 |
| Dr. Herms Hungerbühler | 1944 - 2016 |
| Johannes Nardmann | 1933 - 2017 |
| Dr. Heiner Levedag | 1937 - 2017 |
| Berthold Kalkhoff | 1930 - 2019 |
| Dieter Terjung | 1930 - 2020 |
| Hermann Roter | 1932 - 2020 |
| Karl-Heinz Witte | 1927 - 2020 |
| Edmund Sassen | 1948 - 2021 |
| Dr. Gustav Schünemann | 1931 - 2022 |
| Dr. Hans-Georg Delhey | 1937 - 2023 |