経済協力局
Dean was appointed by Governor Herbert H. Lehman as his adviser for the first American delegation to the United Nations and later as a consultant for The San Francisco Conference. In 1949, General Lucius D. Clay arranged for Dean to travel throughout Europe, visiting Frankfurt, Berlin, Prague, Warsaw and London. In each country, officials of the United States Department of State, United States Army and the Economic Cooperation Administration organized for Dean to interview of representatives and country officials.