On 29 October 1943 , Kwapiński flew , with other diplomats aboard the Pan American Airways Boeing 314A ' Capetown Clipper ' , from Foynes , Éire to New York City , as " Deputy Premier " of Poland , arriving 5 November 1943 , to attend the Atlantic City , New Jersey UNRRA conference . He was Polish signatory to the agreement at the White House on 9 November 1943 . In London , in January 1944 , Mikolajczyk and Kwapiński were the chief Polish moderates with whom British Foreign Secretary Anthony Eden sought to resolve a crisis with the Soviets concerning the long contentious issue of the Polish-Russian frontier . On 23 November 1944 , three days before Prime Minister Mikolajczyk resigned , Kwapiński left his own posts . However he was for seven months Treasury Minister under the succeeding Prime Minister , Tomasz Arciszewski , from 29 November 1944 until 28 June 1945 — eight days before the United Kingdom and the United States , following the February 1945 Yalta Conference agreement with Joseph Stalin , withdrew recognition of the Polish government in exile . Remaining an émigré , Jan Kwapiński died in London in 1964
Yalta Conference
Yalta Conference
Jan Kwapiński