Can you identify this preacher?

Special Collections received an early Christmas present yesterday. Just before the morning service started Tom Milholland handed me this photo of a very young preacher in knee-breeches. Can you guess his identity? Check back tomorrow at noon for the answer! Here is one hint: taken when he just began preaching (at about age 15 or 16) this young man would be one of the most recognizable preachers among Churches of Christ in the 20th century.