Third Corps, Army of Northern Virginia Third Corps, Army of Northern Virginia The Third Corps, Army of Northern Virginia was a unit of the Provisional Army of the Confederate States. After the death of Lt. General Thomas J. Jackson at the Battle of Chancellorsville, Robert E. Lee reorganized his army from two infantry corps into three corps, giving command of the new Third Corps to A. P. Hill. For Hill's new corps, Lee assigned Hill's old "Light Division", commanded by Major General William Dorsey Pender, from the Second Corps and Richard H. Anderson's division from James Longstreet's First Corps. For the Corps' third division, Lee created
Army of Northern Virginia duration of the Gettysburg Campaign. The Army of Northern Virginia now comprised a total of 75,054 soldiers at the Battle of Gettysburg. The army fielded more than 241 cannons following the Battle of Gettysburg. The artillery battalions were merged into the Artillery Reserve again following the end of the campaign. On September 9, General Lee had to dispatch the First Corps to Braxton Bragg's Army of Tennessee. Following this the army was resubordinated again. Changes were not significant; only the cavalry saw important reorganization. The Army's strength was then 55,221 soldiers. The changes in command until December 31, 1863 were