↑ 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. Truy cập ngày 17 tháng 3 năm 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. Chú thích có tham số trống không rõ: |nopp= (trợ giúp)
