Member Awards and Achievements Nathaniel Philbrick Wins George Washington Prize April 26, 2017 Share on Twitter (opens in a new tab) on Facebook (opens in a new tab) on Linkedin (opens in a new tab) via email Nathaniel Philbrick has won the George Washington Prize for Valiant Ambition: George Washington, Benedict Arnold, and the Fate of the American Revolution. The prize honors the year’s best book on the nation’s founding era.