Career
He also performed important bibliographic work, particularly relating to the history of Austrian Jews. After completing his Talmudic, philosophical, historical, and bibliographic studies, Bernhard Wachstein settled in Vienna and became a librarian for the Israelitische Kultusgemeinde Wien (Vienna Israelite Community). In 1919, after the death of Bernhard Münz, he became head librarian.
He was involved with community history and genealogy, and he made important contributions in these areas.