William W. Simpson (1869–1961) arrived in China as a Christian and Missionary Alliance (CMA) missionary in 1892 and spent most of the next 57 years there. He was no relation to the CMA founder A.B. Simpson. When Pentecostal phenomena broke out in north-west China at a CMA convention in Taozhou, Gansu in 1912, Simpson and his wife Otilia were baptized in the Spirit. They passed on their Pentecostal experience to many CMA churches in Gansu and their testimony was published in the official CMA’s Alliance Weekly. Their Tibetan Border district was greatly affected by this Pentecostal…