Dumont, Louiseborn 22. February 1862 in Köln; died 16. May 1932 in Düsseldorf
Kemp, Williborn 2. April 1927 in Köln; died 5. December 2020 in Düsseldorf
Litt, Theodorborn 27. December 1880 in Düsseldorf; died 16. July 1962 in Bonn
Marx, Wilhelmborn 15. January 1863 in Köln; died 5. August 1946 in Bonn
Szenkar, Eugenborn 9. April 1891 in Budapest; died 28. March 1977 in Düsseldorf
Therkatz, Rudolfborn 16. August 1908 in Köln; died 16. December 1961 in Düsseldorf