47 Ronin

John Allyn studied Japanese at Stanford University and was stationed in Japan during the early years of the U.S. occupation. After returning to the U.S., he entered UCLA where he received his master's degree in Theater Arts in 1951. He went on to specialize in Japanese theater, receiving a doctorate in Theater History.

Stephen Turnbull is the author of over 50 books on the military history of Europe and the Far East. He works as a Japanese cultural consultant and a Lecturer in Japanese Religion at the Department of East Asian Studies at Leeds University. He served as the historical advisor for the Universal Pictures film 47 Ronin starring Keanu Reeves.