he served whatever transport requirements the regime demanded. He was considered one-dimensional, only interested in running railroads. US Army interrogations shortly after the war assigned little or no personal responsibility to RVM employees. The US further determined that, with limited exceptions, the personnel held only "lukewarm" connections to the Nazi Party. Americans were far more concerned with retaining key staff to rebuild Germany, stating employees were "very cooperative and anxious to help in the reconstruction of the German Railway System." List of Reich Transport Ministers (1919–1945) Political Party: The SPD withdrew from the Stresemann II Cabinet on 3 November 1923. The DNVP withdrew from the Luther I Cabinet on 26 October 1925. List of State Secretaries (1919–1945) Staatssekretäre Max Peters (1919–1920), Leiter der Wasserstraßen-Abteilung Karl von Stieler (1919–1923) Paul Kirschstein (1920–1924), Leiter der Wasserstraßen-Abteilung Georg Bodenstein (1920–1924), Leiter der Zweigstelle Preußen-Hessen Max Kumbier (1921–1924), Leiter der eisenbahntechnischen Abteilung Johannes Vogt (1923–1924) Rudolf Krohne (1923–1924) Friedrich Wilhelm Gutbrod (1926–1932) Gustav Koenigs (1932–1940) Wilhelm Kleinmann (1937–1942) Albert Ganzenmüller (1942–1945) Buildings The headquarters of the Ministry were located in the Berlin-Mitte district at Voßstraße 34/35. The historicist central building initially housed the Prussian Ministry of Commerce, then the Prussian Ministry of Public Works, and was greatly enlarged by prominent German architect Richard Lucae between 1875 and 1878. As the RVM grew in the 1930s, it came to occupy an extensive range of buildings with façades on three streets: Voßstraße, Leipziger Straße and the Wilhelmstraße. It first expanded into the adjacent Imperial era mansion at Leipziger Straße 125 in 1937, then into the Deutsches Reichsbahn headquarters at Voßstraße 33 in 1939. Just before the outbreak of World War II, construction of a large air-raid shelter with a 2.6-meter-thick concrete ceiling began under the Ministry courtyard and was completed in 1940. This was an extension of the Vorbunker under the New Reich Chancellery across the street. The RVM bunker included a passageway to the U2 subway tunnel south of the Kaiserhof station to provide a rail escape route for Nazi leadership. As the intensity of Allied bombing increased in 1944, essential RVM staff were moved southeast of Berlin to a secret area in Groß Köris on the western shore of the Güldensee, at a special rail siding code-named "Fishing Lodge". By the end of the war, the two ancillary wings of the Ministry were the only parts of the complex left standing - the rest