The collection contains the personal papers of Eric, Robert and Anna, in particular vital records and identity documents. Eric’s papers include the materials he collected in seeking compensation for a property owned by his mother’s family. Robert’s papers contain materials on his dismissal from the Viennese tram company because of the Nazi race laws and a letter from the foreign representatives of the Austrian socialists offering Robert support as a political refugee.

The collection also includes Robert’s correspondence with various institutions on the whereabouts of his brother Ernst, who escaped Vienna for Saratov in the early 1940s.