R. Douglas Brackenridge is a professor emeritus of religion at Trinity University, where he taught for forty years. He is the author of numerous books and articles in the field of American religious history. His research and writing have focused primarily on denominational studies (Presbyterianism) and new religious movements (Mormonism). His articles have appeared most recently in the Journal of Presbyterian History and the Journal of Mormon History. An Ohio native, Brackenridge has lived in San Antonio since 1962.