Thomas Jonathan "Stonewall" Jackson was a Confederate general during the Civil War, and probably the most well-known Confederate commander after General Robert
E. Lee. His military career includes the Valley Campaign of 1862 and his service as a corps commander in the Army of Northern Virginia under Robert E. Lee. He died of
complications of pneumonia on May 10, 1863 at the age of 39. Military historians
consider Jackson to be one of the most gifted tactical commanders in U.S. history.