From ruined Louisiana plantations to bustling, cosmopolitan New Orleans, Kate Chopin wrote with unflinching honesty about propriety and its strictures, the illusions of love and the realities of marriage, and the persistence of a past scarred by slavery and war. Her stories of fiercely independent women challenged contemporary mores as much by their sensuousness as their politics, and today seem decades ahead of their time. Now, The Library of America...