On September 25, 1890, the Mormon prophet Wilford Woodruff publicly instructed his followers to abandon polygamy. In doing so, he initiated a process that would fundamentally alter the Latter-day Saints and their faith. Trading the most integral elements of their belief system for national acceptance, the Mormons recreated themselves as model Americans.

Mary Campbell tells the story of this remarkable religious transformation in Charles Ellis Johnson and the Erotic Mormon Image. One of the church's favorite photographers, Johnson (1857-1926) spent the 1890s and early 1900s taking...