John M. Barry is an American author and historian who has written books on the Great Mississippi Flood of 1927, the influenza pandemic of 1918, and the development of the modern form of the ideas of separation of church and state and individual liberty.
John M. Barry has 2 screen credits in a career dating back to 2001. Signature works include Fatal Flood. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.