Albert Einstein

As a young physicist completing post-doctoral training, Guy von Dardel traveled to Princeton, New Jersey, to personally request Albert Einstein to assist in searching for and obtaining the release of Raoul Wallenberg from the Soviet Union. In response, Einstein wrote a letter to Joseph Stalin requesting his assistance to determine whether Raoul Wallenberg was in Soviet captivity and allow him to return to Sweden. It is known that Stalin read the letter but made no further effort to respond to the request. At the time, the Soviets had yet to admit that Wallenberg had been taken prisoner in Budapest and that he was being held captive in Moscow.