While the Woman's Rights convention was taking place at Seneca Falls in 1848, First Lady Sarah Childress Polk was wielding influence unprecedented for a woman in Washington, D.C. Yet, while history remembers the women of the convention, it has all but forgotten Sarah Polk. Now, in her riveting biography, Amy S. Greenberg brings Sarah's story into vivid focus. We see Sarah as the daughter of a frontiersman who raised her to discuss politics and business...