Jackson, Stonewall (Thomas Jonathan Jackson; 1824–63), Confederate general in the American Civil War. He earned his nickname for his stand against the Union forces at the first battle of Bull Run (1861). After his bold tactics in the 1862 Shenandoah Valley campaign (May-June 1862), he fought brilliantly at the battles of Richmond, the Seven Days Battles, Cedar Mountain, the second battle of Bull Run, Antietam, and Fredericksburg. At Chancellorsville he was fatally wounded by accidental fire from his own troops.
See also: Civil War, U.S.