Army of Northern Virginia 20 and July 21, the Army of the Shenandoah and forces from the District of Harpers Ferry were added. Units from the Army of the Northwest were merged into the Army of the Potomac between March 14 and May 17, 1862. The Army of the Potomac was renamed "Army of Northern Virginia" on March 14. The Army of the Peninsula was merged into it on April 12, 1862. Robert E. Lee's biographer, Douglas S. Freeman, asserts that the army received its final name from Lee when he issued orders assuming command on June 1, 1862. However, Freeman does admit that
Fort Johnston (Leesburg, Virginia) In 1862, when Loudoun County was invaded by the Union army, the fort was abandoned and later occupied by the Federals who rechristened it Fort Geary in honor of their commander. Throughout the war, Leesburg was rarely held in force by either side of the conflict and the fort saw little use. Today, parts of the earthworks of the fort still exist, and are located on private property on Fort Johnston Road. Fort Johnston (Leesburg, Virginia) Fort Johnston, also known as Fort Geary, is a Civil War era earthen fort atop a peak of Catoctin Mountain just west of Leesburg,