By Amanda Hendrix-Komoto Amanda Hendrix-Komoto has a Ph.D. in history from the University of Michigan. She is the author of “Undressing Mahana: The Development of Mormon Modesty Culture and the Display of Polynesian Bodies,” forthcoming in Out of Obscurity: Mormonism after 1945 from Oxford University Press. When Mormons adopted polygamy in the mid-nineteenth century, …