included: Adolf Abel, Hanna Cauer [de], Emma Cotta, Ludwig Dettmann, Ulfert Janssen [de], Fritz Koelle, Ekke Ozlberger, Paul Mathias Padua, Hermann Joachim...

Heerma, Heiberger, Hoefker, Janssen, Joling, Keuning, Ludemann, Main, Memmelaar, Petersen, Roskamp, Scholten, Ulferts, Van Brug, Van Der Wilt, Van Geest...