George Sheehan is the Dean of Students at Devon and has been teaching for nineteen years. At Devon Prep since 2013, he has taught Advanced Placement English, American Literature,  British Literature, War Literature, Creative Writing, Public Presentation, and Introduction to Legal Studies. He serves as the head coach of the Mock Trial team and is former chair of the English Department. He is a cum laude Honors-Arts graduate with his B.A. and his J.D. from Villanova University.