Historian; since 2008 doctorate at the University of Vienna with a (published) dissertation on Nazi forced sterilization in Vienna; collaboration in various contemporary history research projects, incl. compensation legislation (on behalf of the Austrian Historical Commission), anthropology in the Third Reich (FWF project at the Natural History Museum (NHM) Vienna), anatomical science at the University of Vienna 1938–45 (University of Vienna senate project); provenance research at the NHM Vienna; since 2015 provenance researcher at the Museum für Volkskunde (Museum of Folk Life and Folk Art) in Vienna; further information on research and publications: www.claudia-spring.at.
Rudolf Engel obtained a doctorate in philosophy from the University of Vienna in 1906. He worked as a secondary school teacher but was mainly involved in publishing and selling books and theatre items.