Older than the other members of Digamma Pi, but bent on becoming a medical missionary of the Sanctification Brotherhood, Ira Hinkley realizes his ambition in the West Indies and dies of the plague. Obnoxious to Martin in college and in later life, Hinkley is a forerunner of Elmer Gantry, who is to appear two years later (in 1927) in the book which bears his name. Through such characters, Lewis satirized the churches of his time.