Rose O'Neal Greenhow (1813 or 1814[1]– October 1, 1864) was a renowned Confederate spy during the American Civil War. A socialite in Washington, D.C. during the period before the war, she moved in important political circles and cultivated friendships with presidents, generals, senators, and high-ranking military officers. She used her connections to pass along key military information to the Confederacy at the start of the war. In early 1861, she was given control of a pro-Southern spy network in Washington, DC by her handler, Thomas Jordan, then a captain in the Confederate Army. She was credited by Jefferson Davis, the Confederate president, with ensuring the South's victory at the First Battle of Bull Run in late July 1861.