. "The collection consists of a portrait drawing, correspondence, documents, photographs, and assorted memorabilia related to the experiences of Julius and Lilli (Loewenthal) Hockenheimer and their children, Marianne and Rudolf (Rudy) (later Ralph Hockley) during the Holocaust in Germany and France, their 1940 emigration to the United States, and postwar life, as well as other members of the Hockenheimer, Loewenthal, Fraenkel, and Brock families."@en . . "Hockenheimer, Loewenthal, Fraenkel, and Brock families collection"@en . "irn533532" . . . . .