 Complete the following phrase:  During the summer of 1861, the Manassas Gap Railroad became the first railroad in American history to move troops to a major battle. Brigadier General Stonewall Jacksons brigade marched from Winchester, Virginia, through Ashby Gap and boarded trains at the Piedmont Station at Delaplane, Virginia. From there they were transported to the OAs Manassas Junction and debarked to join the fight at the 