The MI5 website, using the sources available to Hugh Trevor-Roper (an MI5 agent and author of The Last Days of Hitler), records the marriage as taking place after Hitler had dictated his last will and testament. MI5, Hitler's Last Days"Hitler's Last Days". Government of the United Kingdom. MI5 Security Service. Retrieved 9 August 2020.
Among Goebbels' school papers offered for auction in 2012 were more than 100 love letters written between Goebbels and Stalherm. The Telegraph 2012. Staff (25 September 2012). "Joseph Goebbels love letters up for auction". The Telegraph. Associated Press. Archived from the original on 25 September 2012.
Among Goebbels' school papers offered for auction in 2012 were more than 100 love letters written between Goebbels and Stalherm. The Telegraph 2012. Staff (25 September 2012). "Joseph Goebbels love letters up for auction". The Telegraph. Associated Press. Archived from the original on 25 September 2012.