During America's most divisive war, both the Union and Confederacy took advantage of brave and courageous women willing to adventurously support their causes. These female spies of the Civil War participated in the world's second-oldest profession-spying-a profession perilous in the extreme. The tales of female spies are filled with suspense, bravery, treachery, and trickery. They took enormous risks and achieved remarkable results-often in ways men could not do. On the Military Intelligence History Reading List 2012.

Rebel queen of Washington spies : Rose Greenhow --Vanished without a trace : Sarah Slater -- "Singing as Sweetly as Ever" : Olivia Floyd -- Grant's most valuable Richmond spy : Elizabeth Van Lew -- The spy who saved ships : Elizabeth Baker -- Double trouble sister act : Ginnie and Lottie Moon -- The perils of Pauline : Pauline Cushman -- The heroine of Winchester : Rebecca Wright -- A glorious consummation : Harriet Tubman -- A teenage terrorist : Nancy Hart -- "No Sacrifice Too Great" : Antonia Ford and Laura Ratcliffe -- Mosby's Merry Christmas : Roberta Pollock -- A secesh Cleopatra : Belle Boyd -- The clever masquerader : Emma Edmonds -- Trapped in a sting operation : Clara Judd -- Sarah's deadly revenge : Sarah Lane Thompson -- Hired to find herself : Loreta Velazquez -- Beyond the call of duty : more heroines -- Did she die for their sins? : Mary Surratt.