him some 1,200 horses he and his men had captured. He rested for a day after the crossing northeast of Leesburg before moving south to the town to pick up the Winchester Turnpike west into the Shenandoah Valley by way of Snickers Gap. Skirmish at White's Ford - October 10, 1862 On October 27, George B. McClellan and his Army of the Potomac belatedly reentered Virginia in pursuit of Lee. The Union army crossed the Potomac River around Berlin (present day Brunswick, Maryland) and Harpers Ferry and then proceeded down the Loudoun Valley, foraging off local farms. While in Loudoun, McClellan set up headquarters in Wheatland, Purcellville and Unison. As the Federals moved through the county, Col. E.V. White and his Comanches struck at the supply trains and managed to capture 1,000 prisoners and 200 wagons. Likewise General J.E.B Stuart and his cavalry sparred with the advancing Federal columns in an effort to screen the movement of the Army of Northern Virginia below the Rappahannock River. Stuart's actions further delayed McClellan's pursuit and contributed to the eventual removal of McClellan from command of the army. Battle of Unison, October 29 - November 1, 1862 The Gettysburg Campaign: June - July, 1863 Following the Battle of Chancellorsville, the Army of Northern Virginia again marched north to cross the Potomac. While Lee's main body this time stayed west of the Blue Ridge Mountains, he sent the divisions of John Bell Hood and George Pickett east of the mountains through Loudoun County to guard the mountain passes and protect his right flank. In addition to Hood and Pickett, J.E.B. Stuart's cavalry was kept east of the mountains to prevent the Union cavalry from pinning down the location of the Confederate Army. While moving through Loudoun County, Stuart engaged in a series of battles along the Ashby's Gap Turnpike as Union cavalry commander Brig. Gen. Alfred Pleasonton attempted to break through Stuart's screen and locate the Confederate army. As the cavalry fight raged along the Ashby's Gap Turnpike, Maj. Gen. Joseph Hooker began his pursuit of Lee and entered Loudoun County on June 17 and headed to Edwards Ferry, where pontoon bridges had been assembled. Over the next eleven days, the entire Army of the Potomac came through the county and crossed the Potomac at Edwards Ferry. In addition to securing Edwards Ferry, the Union army covered all major crossings of the river up