レイ・アサートン
1 2 The Political Graveyard(英語)
↑ U.S. Department of State : Chiefs of Mission to Greece(英語)
1 2 O'Halpin, Eunan (1989). Head of the Civil Service: A Study of Sir Warren Fisher. London, United Kingdom: Routledge. pp. p.298. ISBN 9780415031141 (英語)
↑ U.S. Department of State : Chiefs of Mission to Bulgaria(英語)
↑ U.S. Department of State : Chiefs of Mission to Denmark(英語)
↑ U.S. Department of State : Chiefs of Mission to Canada(英語)
↑ U.S. Department of State : Chiefs of Mission to Luxembourg(英語)