Frederic Pryor is a real life professor of economics at Swarthmore College. You can read more about him at wikipedia https://en.wikipedia.org/wiki/Frederic_Pryor. You can see an article describing his real life experience of the events portrayed in the movie Bridge of Spies in this article: http://www.swarthmore.edu/news-events/economist-frederic-pryor-recounts-life-a-spy.