Frederic L. Pryor References Frederic L. Pryor American political prisoner Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Rudolf Abel…was exchanged for Powers and Frederic L. Pryor, an American student who had been held without charge in East Germany since August 1961. Read More…was exchanged for Powers and Frederic L. Pryor, an American student who had been held without charge in East Germany since August 1961. Read More