October 10, 1862 A small detachment of the
12th Illinois Cavalry Regiment under Captain Thomas Logan observed Stuart's force cross the Potomac River at McCoy's Ford near
Old Fort Frederick, Maryland, west of
Williamsport, Maryland, on the morning of October 10, but the small force could do no more than send the information back to Union headquarters as it was scattered out of its position by an advance detail of Stuart's men. At this point, Stuart was only from the Maryland-Pennsylvania state line. Stuart also learned that he had narrowly missed being intercepted by six regiments of infantry under the command of Major General
Jacob Cox when he reached the
National Road. A detail captured a signal station at
Fairview Heights, Maryland while Stuart's force moved north, guided by Maryland native, Captain Benjamin S. White. The Confederates seized shoes and clothing at Mercersburg, Pennsylvania and paid for it with Confederate
scrip. By dark, at around 7:00 p.m., in a steady rain, the Confederates reached Chambersburg with the many horses and much fresh food and supplies that they had picked up already. Town officials sent an alarm to
Governor Andrew Curtin, who passed the message on to
United States Secretary of War Edwin M. Stanton just before the Confederates cut the telegraph wires. Stuart and his staff took time to sign the register at the Franklin Hotel. In fact, Wert states that the bridge was wooden and subsequently was destroyed during the
Gettysburg campaign. They set ablaze the Chambersburg railroad depot, loaded trains, machine shops and warehouses with military supplies. McClellan sent out his cavalry and sent infantry to guard the river crossings, assuring Halleck that Stuart would not escape. Ultimately Stuart evaded or outran all of the forces McClellan sent after him or to guard the river crossings. They rode within of the small town of
Gettysburg, Pennsylvania on their way. They captured a Union courier about south of Emmitsburg with information which disclosed some of the Union cavalry movements, allowing Stuart to change his route again to avoid Union troops at Frederick, but also assuring him that his location was not definitely known. Confederate troopers who had lived in the vicinity guided Stuart on back roads to avoid being observed by Union scouts. Near dark, at
Woodsboro, Maryland, off the main road from Frederick, troops of the
6th Pennsylvania Cavalry Regiment saw the Confederates, but were too few in number to mount an attack. During the night, as his men continued to ride, Stuart, with about 12 men, visited a young woman at
Urbana, Maryland whose family sympathized with the Confederates and whom he had met during the Antietam campaign. The troopers rode all night, cutting telegraph wires and obstructing the
Baltimore and Ohio Railroad as they went, and some were literally falling asleep in the saddle as they pressed on.
October 12, 1862 On the morning of October 12, scouts reported to Stuart that Union Brigadier General
George Stoneman was guarding the Potomac River fords near
Poolesville, Maryland with several thousand men. On the of the Potomac River from the mouth of the Monocacy River to Edwards Ferry, which is near Poolesville, at least four crossings were available. Stuart followed the recommendation of Captain White, who was from the local area, to avoid Stoneman's likely position by using
White's Ford, which was below the mouth of the
Monocacy River near present-day
White's Ferry and little used as it was a rough crossing, to cross the Potomac to
Loudoun County, Virginia. Stuart did not come into contact with Stoneman, whose men, other than a small guard unit, arrived at White's Ford too late to confront the Confederates. Pleasonton ordered his men to fire when the Confederates charged from a short distance away. Here the Union cavalry encountered Union infantry and both paused in order to insure that the other party was not a Confederate force in Union uniforms. The ford now was open for the Confederates to cross. Pelham's artillery came up and kept the Union forces, including Pleasonton's men, back while Stuart's men crossed the Potomac with their 1,200 captured horses, supplies and 30 civilian hostages. The small Union force detailed to White's Ford, where Lee had crossed into Maryland in September, proved to be a weak link in McClellan's dispositions. The Confederates soon rode safely into
Leesburg, Virginia with their captured horses, supplies and hostages and without having lost a man to death or a serious injury. ==Aftermath==