After completing his training at the teaching college in Krems an der Donau and his study of art history with Josef Strzygowski at the University of Vienna, Karl Hareiter worked as an art teacher until 1939 and als

Rudolf Kaftan studied mathematics and physics at the University of Vienna.

Marianne Zels owned a fashion boutique in Vienna from 1899 and was technical director from 1910 to 1926 of the fashion department of the Wiener Werkstätte at Neustiftgasse 32 in Vienna's 7th district. After a short period as workshop manager at G. und E.