One of the Confederacy’s most successful female spies, Rose O’Neal Greenhow was a prominent Washington widow and a staunch southern sympathizer. The Confederacy recruited her as a spy after war erupted in 1861. Most notably, Greenhow is credited with passing along intelligence prior to the First Battle of Manassas, insuring a southern victory. Soon after, her covert activities were uncovered and she was placed under house arrest. Gardner took this photograph after “Rebel Rose” and her daughter, Little Rose, were transferred to the Old Capitol Prison in 1862. Greenhow served five months before being exiled to the South. She then traveled to Europe to promote the Confederate cause. Returning in September 1864, Greenhow drowned attempting to run the federal blockade of Wilmington, N.C. The Confederacy buried her with military honors.