Egon Ranshofen-Wertheimer as a diplomat and supervisor of the League of Nations for 10 years in Geneva, beginning in 1930. Because of the incidents in Europe, he emigrated to America, where he worked at the American University in Washington as a professor. In addition, he was employed as a consultant of the United States State Department and supported the US government in the struggle against Hitler. There, he and his younger colleague Leopold Kohr began to criticize the National Socialist Germany through media such as "The New York Times". Shortly after the Second World War, Egon Ranshofen began to work as executive,
Egon Ranshofen-Wertheimer supervisor, and diplomat for the UNO. His book "A Great Experiment in International Administration" had a substantial influence on the developing of the UN. Ranshofen-Wertheimer and Kohr also lobbied for an independent Austria. That the young second republic of Austria became a member of the UN rather fast can be attributed to the engagement of Ranshofen-Wertheimer. Egon Ranshofen-Wertheimer is buried in the cemetery of the castle Ranshofen in his family grave. Braunau Contemporary History Days 16 September 2007, with the title “Peacemakers manual”, focused on the life of Egon Ranshofen-Wertheimer. The Egon Ranshofen-Wertheimer Award (ERWA) was founded by the Society