The artist and restorer Marianne Adler was the daughter of the journalist Heinrich Adler and the illustrator Maria Adler and the niece of the prominent Austrian Social Democrat Victor Adler.
Restorer
Robert Eigenberger studied art history at the German University in Prague and wrote his doctoral thesis in 1913 on the sculptor Adam Krafft.
After Moritz Lindemann had worked as a goldsmith and jewel designer and then as a quick-sketch artist in Viennese and Berlin cabarets, he opened his own art dealership specializing in Old Masters in Vienna in 1911.
Franz Sochor was born in 1902 and worked from 1919 as a bank clerk in the Niederösterreichische Escompte-Gesellschaft in Vienna. At the same time, he took various painting courses in his free time, for example with the academy painter H.