Albert Benjamin Simpson (December 15, 1843 - October 29, 1919), also known as A. B. Simpson, was a Canadian preacher, theologian, author, and founder of the Christian and Missionary Alliance (C&MA), an evangelical denomination with an emphasis on global evangelism. During the beginning of the twentieth century, Simpson became closely involved with the growing Pentecostal movement, an offshoot of the Holiness movement. It was common for Pentecostal...