In 1913, Betty Blum married the entrepreneur Noe Blum from Poland, who had a business in Munich dealing in antiques, oil paintings, old and new furniture, gold and silverware.

In July 1919 the antiques dealers and brothers Samuel (1873 – deported 1942) and Maximilian (1881–1952) Glückselig, together with the businessman August Wärndorfer (1865–1940), founded Auktionshaus für Altertümer Glückselig &a

Alexander Grosz was born in Neusatz (Novi Sad/Ujividek) in present-day Serbia.

On completion of his education at commercial college, Johannes Katzler worked until 1924 in his parent's company in Vienna.