Files document the FBI's treatment of a wide variety of "alive" sightings of Hitler after the war. The bureau maintained files relating to sightings in Argentina. Contains FBI lab reports on authenticating Hitler's marriage certificate, will, and other political documents. Files contains reporting of information given to the bureau of an alleged plot by a group of Jewish Americans in New York to assassinate Hitler in 1933. In 1933 information by a citizen was given to the German embassy in Washington, of the alleged plan. The German embassy informed the FBI of the information it received. A memorandum written by J. Edgar Hoover in 1941 tells of information from a confidential source about a new succession plan Hitler made in case of his death.
Collection contains an additional 122 pages of files covering "Putzi" Ernst Franz Sedwick Hanfstangl. Hanfstangl was an author and from 1923, an intimate friend of Adolf Hitler, who served as Hitler's Nazi Press Chief. In 1938, the FBI noted that Hanfstangl possibly had been connected with the Black Tom and Kingsland explosions. Hanfstangl spent War World II in Canada and the United States. The FBI never interviewed Hanfstangl.