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Letter Written in Cipher on Mourning Paper by Rose Greenhow
Rose O'Neal Greenhow was a spy for the Confederacy during the American Civil War. As a young woman in Washington, she befriended many influential politicians, including President James Buchanan and South Carolina Senator John C. Calhoun, who played a role in shaping her dedication to the South. During the Civil War, Greenhow wrote ciphered (secret code) messages to the Confederates, providing information about Union military plans. Confederate President Jefferson Davis credited her with helping the South win the First Battle of Bull Run. Greenhow sent a message about Union ...
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U.S. National Archives and Records Administration