"Prophet Harris, The 'Black Elijah' of West Africa" (David Shank, Brill, 1994, 346p) offers the only comprehensive study of the thought of William Wade Harris, the Glebo (Liberia) loyalist whose prophetic mission from 1910-29 moved tens of thousands of West Africans out of traditional religion into the stream of Christianity and modernization, particularly in the Ivory Coast.
It reviews that unparalleled breakthrough, thoroughly examines traditional African, Western missionary and colonial influences which helped determine religious innovation and shape his vocation as prophet of Christ's reign of peace and prosperity." (link).