Alexander Hugh Macmillan (June 2, 1877-August 26, 1966), also referred to as A. H. Macmillan, was an important member of the Bible Students, later known as Jehovah s Witnesses. In his book Faith on the March, published in 1957, he retraces the history of the religious movement. He became a close friend of the movement s founder Charles Taze Russell, and was an early board member of the Watch Tower Bible and Tract Society, joining that body in 1918.