Rumor, gossip, and innuendo are the weapons of the home front, and no one wielded them with quite the aplomb of Maria Lydig Daly. Her richly detailed comments on everything from inept Union generals to Dorothea Dix's appearance provide the liveliest memoir to emerge from a Northern noncombatant. Daly was the wife of a prominent New York City judge whose connections allowed her to meet many major figures involved in Northern military and diplomatic...