Oblas, Peter (1972). «Treaty Revision and the Role of the American Foreign Affairs Adviser 1909-1925»(free). Journal of the Siam Society (Siam Heritage Trust). JSS Vol. 60.1 (digital): image 4. Consultado el 17 de marzo de 2013. «In the course of his service, Sayre was awarded the Grand Cross of the Crown of Siam. The title of Phya Kalyanamaitri was also bestowed upon him. 13) Francis B. Sayre, Glad Adventure (New York: MacMillan, 1957), p. 105.»