CHAPTER I. THE INVASION OF THE NORTH.

An invasion of the North being considered as both practicable and necessary, it only remained to select the most available route.

There was no object in passing east of Hooker's army, and it would have been wholly impracticable to do so, as the wide rivers to be crossed were controlled by our gunboats.

To attempt to cross the Rappahannock to the west, and in the immediate vicinity of Fredericksburg, would have been hazardous, because when an army is crossing, the portion which is over is liable to be crushed before it can be reinforced.

It would seem that Lee's first intention was to move along the eastern base of the Blue Ridge directly toward Washington.* The appearance of his army on Hooker's flank would be a kind of taunt and threat, calculated to draw the latter out of his shell, and induce him to make an attack. In such a case, as the rebels were in the highest spirits, in consequence of their recent victory at Chancellorsville, their commander had little doubt of the result. This plan was feasible enough, provided his cavalry could beat back that of Pleasonton and act as a screen to conceal his movements. This they were not in a condition to do after the battle of Brandy Station, and Lee was thus forced to take the route down the Shenandoah Valley, which had many advantages. The mountain wall that intervened between the two armies, was a sure defence against our forces, for it was covered by dense thickets, and the roads that lead through the gaps, and the gaps themselves, were easy to fortify and hold against a superior force. If Hooker had attempted to assail these positions, one corps could have held him in check, while the other two captured Washington.

[* See map facing page 1.]

The movement also favored the subsistence of the troops, for the valley being a rich agricultural region, Lee was enabled to dispense with much of his transportation and feed his army off the country.

There was one serious obstacle, however, to his further progress
in that direction, and that was the presence of a gallant soldier,
Milroy, with a very considerable Union garrison intrenched at
Winchester.

It was essential to Lee's advance that the valley should be cleared of Union troops, otherwise they would sally forth after he passed and capture his convoys.

With this object in view, on the 10th Ewell's corps passed through
Gaines' Cross Roads, and halted near Flint Hill on their way to
Chester Gap and Front Royal.

The possibility of an invasion had been discussed for some days in Washington, and Halleck had come to the conclusion that it was better to withdraw the stores and ammunition from Winchester, and retain the post there merely as a lookout, to give warning of the enemy's approach. Accordingly, on the 11th, Milroy received orders from his department commander, General Schenck, to send his armament and supplies back to Harper's Ferry. Milroy remonstrated, saying that he could hold the place against any force that would probably attack him, and that it would be cruel to sacrifice the Union men who looked to him for protection.

In reply to this Schenck telegraphed him that he might remain, but must be in readiness to retreat whenever circumstances made it necessary.

Milroy, in answer to another inquiry, reported that he could move in six hours.

On the 12th he sent out two scouting parties, and learned there was a considerable force at Cedarsville, which he thought might form part of Stuart's raid, information of which had been communicated to him.

He could not believe it possible that an entire rebel corps was near him, for he supposed Lee's army was still at Fredericksburg. His superiors had not informed him, as they should have done by telegraph, that a large part of it had moved to Culpeper. He thought if Lee left Hooker's front at Fredericksburg, the Army of the Potomac would follow and he would receive full information and instructions. He telegraphed General Schenck late that night for specific orders, whether to hold his post or to retreat on Harper's Ferry, stating there appeared to be a considerable force in front of him. As the enemy soon after cut the wires, he never received any answer. He sent a messenger the same night to notify Colonel McReynolds, at Berryville, that there was a large body of the enemy on the Front Royal road, and directed him to send out scouts to Millwood, and keep himself advised of its approach, in order that he might prepare to fall back on Winchester the moment he was attacked by superior numbers.

On the 13th Ewell marched with two divisions directly on Winchester, while he sent the third—that of Rodes—to take Berryville. Thanks to the timely warning McReynolds had received, his brigade got off in time, his rear being covered by Alexander's battery, the 6th Maryland Infantry, and part of the 1st New York (Lincoln) Cavalry. These detained the enemy two hours, and then caught up with the main body. Jenkins' cavalry came upon the retreating force at Opequan Creek, where he made a fierce attack, which was promptly repulsed by the rear guard, aided by the artillery with canister. After this there was no further molestation, and McReynolds' command reached Winchester at 10 P.M.—a march of thirty miles.

Soon after the affair at the Opequan, Major Morris, with 200 men, was attacked at Bunker Hill, an outlying post of Winchester. He occupied a fortified church, but moved out to meet the enemy, under the impression it was only a small raiding party. When he found two thousand men in line of battle he retreated, fighting, to the church again. There, as the doors were barricaded, and the walls loopholed, the rebels could make no impression, and were obliged to fall back to a respectful distance. In the night Morris managed to steal away, and soon rejoined the main body at Winchester.

The arrival of these reinforcements seriously embarrassed Milroy; and it will be seen hereafter that it would have been much better for all concerned if they had retreated to Harper's Ferry at once. They acted, however, strictly in obedience to orders.

Rodes' division, after the taking of Berryville, kept on towards
Martinsburg, and bivouacked at a place called Summit Point.

On the morning of the 13th Milroy had sent out a detachment under General Elliot on the Strasburg road, and another under Colonel Ely on the Front Royal road, to reconnoitre. Eliott found no enemy, and returned. An attempt was made to cut him off from the town, but it was repulsed. His troops were then massed on the south side behind Mill Creek and a mill-race which ran parallel to it, and were protected by stone fences. Colonel Ely had a brisk artillery skirmish with Ewell's advance, and then fell back to Winchester, taking post at the junction of the Front Royal and Strasburg roads. The enemy did not attempt to cross the creek that night, but at 5 P.M. they advanced and captured a picket-post which commanded the Strasburg road, but were soon driven out.

From a prisoner captured in this skirmish Milroy learned the highly important intelligence that he was confronted by Ewell's corps and that Longstreet was rapidly approaching.

The most natural course under the circumstances would have been for him to retreat at once, but McReynolds' brigade had just arrived, exhausted by their forced march, and could go no further, without some hours' rest. To move without them would be to sacrifice a large part of his force. He still cherished the hope that Hooker's army would follow Lee up closely and come to his relief.

Ewell at night directed Early's division to attack the works on the north and west of the town at daylight the next morning, while Johnson's division demonstrated against the east and southeast.

Early on Sunday, the 14th, Milroy sent out a detachment to see if the enemy had established themselves on the Pughtown or Romney roads. The party returned about 2 P.M. and reported the roads clear, but soon after the rebels came in great force from that direction, so that Milroy's hopes of escaping by the routes leading to the northwest were dissipated. Immediately west of Winchester, and parallel with Applebie Ridge, on which the main forts were situated, there is another ridge called Flint Ridge, where rifle pits had been commenced to command the Pughtown and Romney roads. These were held by one regiment, and part of another under Colonel Keifer of the 110th Ohio, together with Battery "L" of the 5th United States Artillery. Early's division made a sudden attack there, preliminary to which he opened fire with four batteries. He charged into these rifle-pits and took them, but the garrison retreated successfully, under cover of the fire, from the main works above, which were held by Elliot's and McReynolds' brigades. This was followed by an artillery duel, which was kept up until 8 P.M. without any special results.

Johnson's division at daybreak attacked the eastern side of the town, held by Colonel Ely's brigade, but was gallantly met and repulsed by the 8th Pennsylvania and 87th Pennsylvania. These two regiments, by Milroy's order, made a bold charge against the enemy as they were retiring, but the latter were so suddenly and strongly reinforced that the two regiments were glad to get back to their shelter in the fortified suburbs. They were followed up however, and after severe fighting Johnson gained possession of a part of the town. This apparent success proved of no avail, for the forts above shelled him out. He therefore retired and made no further attempt in that direction.

Darkness ended the struggle for the day. Johnson then left one brigade to prevent Milroy from escaping toward the east and went off with the remainder of his division to form across the Martinsburg pike, about three miles north of Winchester, to intercept Milroy's retreat in that direction.

While these events were going on in the Valley, Imobden's cavalry was engaged in breaking up the Baltimore and Ohio Railroad near Romney, to prevent Milroy from receiving any reinforcements from the west.

The latter now found himself in a perilous situation. His cannon ammunition was nearly exhausted, and he had but one day's rations for his men. He resolved to give up all further attempts to defend the place, to abandon his wagon train and artillery, and to force his way through the hostile lines that night; taking with him only the horses and small arms. This involved his leaving also his sick and wounded, but it was unavoidable. He ordered all the guns spiked, and the ammunition thrown into the cisterns.

At 1 A.M. on the 15th, he moved silently out through a ravine and was not molested until he struck the Martinsburg road, about four miles from the town. There Elliot, who was in the advance with his brigade, met a rebel skirmish line, and soon ascertained that their main body were formed, partly on high ground in a woods east of the road, and partly in an open field east of and adjoining the woods. The enemy were in effect sheltered by a stone fence which bordered a railroad cut, with their reserve and artillery principally posted on elevated ground in the rear.

The only thing to do was to break through their lines as soon as possible. It was now about 3:30 A.M. Elliot, whose record of long, careful, and brilliant service in the regular army is an exemplary one, formed line of battle with his three regiments and fought the six regiments that held the road for about an hour with varied success, encountering a severe artillery fire and driving back their right in disorder by a gallant charge of the 110th Ohio and 122d Ohio; but unfortunately their left held firm, in spite of repeated attacks made by Colonel Shawl with two regiments, reinforced with two more and by part of Colonel Ely's brigade. Their force in front, too, was sustained by heavy reserves both of infantry and artillery.

A signal-gun fired at Winchester showed that the enemy there were aware of the flight and were in full pursuit. The main road being blocked, Milroy determined to try another, and directed the troops to fall back a short distance and turn to the right. Part of them did so, but the greater number, through some misunderstanding, filed to the left, and took the road to Bath. It was no longer possible to reunite the two columns and as Milroy's horse was shot under him about this time, he could use no personal exertions to remedy the disaster. A portion of the command who were not pursued reached Harper's Ferry by way of Smithfield late in the afternoon. Those who moved out on the Bath road also made good their escape, crossed the Potomac at Hancock, and rallied at Bloody Run. The greater part of Colonel Ely's brigade, and Colonel McReynolds' brigade, however, were captured. Milroy claims to have brought off 5,000 men of the garrison, and that the 2,000 paroled by Early, consisted principally of the sick and wounded. Early says he sent 108 officers and 3,250 enlisted men as prisoners to Richmond. Johnson, who intercepted the retreat, says he captured 2,300 prisoners, 175 horses, and 11 battle flags.

While two-thirds of Ewell's corps were attacking Winchester, the other division under Rodes, preceded by Jenkins' brigade of cavalry, pursued McReynolds' wagon train to Martinsburg, arriving there late in the afternoon of the 14th. The town was held as an outlying post of Harper's Ferry by a small detachment of all arms under Colonel Tyler, a subordinate of General Tyler, who formed his men outside of the place and resisted Rodes' attack until night, when his infantry escaped to Shepherdstown, and his artillery and cavalry to Williamsport. In carrying out these movements, however, he lost five guns and five caissons. He passed the river and rejoined the main body at Harper's Ferry. The latter place is wholly indefensible against an enemy holding the hills around it. It is like fighting at the bottom of a well. General Tyler had therefore very wisely moved across the river to Maryland Heights, where he had a strong fortified post. From that commanding eminence he could very soon shell out any force that attempted to occupy the town.

The Shenandoah valley was now clear of Union troops, and soon became the great highway of the invasion. However disastrous Milroy's defeat may be considered on account of the losses incurred, it was not without its compensation. The detention of Ewell's force there gave time to the general Government and the Governors of the loyal States to raise troops and organize resistance, and it awakened the entire North to the necessity of immediate action.

Hooker, having learned that Ewell had passed Sperryville, advanced his right to prevent any crossing in his immediate vicinity, and confine the enemy to the Valley route. He sent the Third Corps to hold the fords opposite Culpeper, and the Fifth Corps to guard those lower down.

On the 13th he gave up his position opposite Fredericksburg, and started north toward Washington, giving orders to Sedgwick to recross and follow on to Dumfries. That night the First Corps reached Bealeton, and the Eleventh Catlett's station. Reynolds was placed in command of the left wing of the army (the First, Third, and Eleventh Corps) and I relieved him in command of the First Corps. The right wing (that is the Second, Fifth, Twelfth, and Sixth Corps) was accompanied by Hooker in person, who reached Dumfries on the 14th.

As soon as Hill saw Sedgwick disappear behind the Stafford hills, he broke up his camp and started for Culpeper.

Some changes in the meantime had occurred in the Army of the Potomac,
and General Hancock was assigned to the Second Corps instead of
General Couch, who had been sent to organize the department of the
Susquehanna at Harrisburg, Pennsylvania.

The teamsters and fugitives from Winchester, making for Chambersburg in all haste, told the inhabitants of the towns through which they passed that the rebels were close behind them. This created the wildest excitement. As many cases had occurred in which negroes had been seized, and sent South to be sold as slaves, the whole colored population took to the woods and filled up the roads in all directions. The appearance of Jenkins' brigade, who crossed at Williamsport on the morning of the 15th and reached Chambersburg the same day, added to the alarm.

Jenkins was at the head of 2,000 cavalry, and soon became a terror to the farmers in that vicinity by his heavy exactions in the way of horses, cattle, grain, etc. It must be confessed he paid for what he took in Confederate scrip, but as this paper money was not worth ten cents a bushel, there was very little consolation in receiving it. His followers made it a legal tender at the stores for everything they wanted. Having had some horses stolen, he sternly called on the city authorities to pay him their full value. They did so without a murmur—in Confederate money. He pocketed it with a grim smile, evidently appreciating the joke. He boasted greatly of his humanity and his respect for private property, but if the local papers are to be believed, it must be chronicled to his everlasting disgrace that he seized a great many negroes, who were tied and sent South as slaves. Black children were torn from their mothers, placed in front of his troops, and borne off to Virginia to be sold for the benefit of his soldiers. There was nothing out of character in that, he thought, for it was one of the sacred rights for which the South was contending.

Prompt measures were taken by the Northern States to meet the emergency. Mr. Lincoln called on the Governors of West Virginia, Maryland, Pennsylvania, and New York to raise 120,000 men for temporary service. It was easy to get the men, but difficult to arm them, as nearly all serviceable muskets were already in possession of the Army of the Potomac. As early as the 9th two new departments had been created for Pennsylvania: That of the Monongahela, with headquarters at Pittsburg, was assigned to Major-General W. T. H. Brooks; and that of the Susquehanna, with headquarters at Carlisle, to Major-General Darius N. Couch.

On the 15th Ewell reached Williamsport with a force estimated at twelve thousand men and sixteen guns.

Before Couch could reach Carlisle it was already occupied by Jenkins' cavalry, and the terrified farmers of that section of country were fleeing in crowds across the Susquehanna, driving their horses and cattle before them.

CHAPTER II. HOOKER'S PLANS—LONGSTREET OCCUPIES THE GAPS IN THE BLUE RIDGE— ALARM IN RICHMOND—HOOKER SUPERSEDED BY MEADE.

A shower of telegrams came to Hooker, notifying him of these untoward events, and demanding protection; but he simply moved one step toward the enemy. On the 15th he had three corps—the First, Sixth, and Eleventh—grouped around Centreville, with the Third Corps at Manassas, and the Second, Fifth, and Twelfth Corps in reserve at Fairfax Court House. The left flank of the army was guarded by Pleasonton's cavalry, posted at Warrenton. Hooker was not to be drawn away from the defence at Washington by any clamorous appeal for his services elsewhere; his plan being to move parallel to Lee's line of advance and strike his communications with Richmond at the first favorable opportunity. He obtained some reinforcements at this time, Stannard's Second Vermont brigade being assigned to my division of the First Corps, and Stahel's cavalry division, about six thousand strong, being directed to report to General Pleasonton for duty.

As Harrisburg lay directly in the track of the invading army, Governor Curtin made strenuous efforts to collect a force there. He called upon all able-bodied citizens to enroll themselves, and complained that Philadelphia failed to respond. New York acted promptly, and on the 15th two brigades arrived in Philadelphia on their way to the front.

On the same day Longstreet, having been relieved by Hill, left Culpeper with his corps and marched directly across the country east of the Blue Ridge to occupy Ashby's and Snicker's Gaps. Stuart's cavalry were to guard his right flank, but did not leave until the next day. The object of Longstreet's movement was to tempt Hooker to abandon his strong position in front of Washington and march against the Gaps, in which case it was hoped some opportunity might occur by which the rebels could either crush the Army of the Potomac in the open country or possibly outmanoeuvre it, so as to intervene between it and Washington; but Hooker remained stationary.

Rodes' division of Ewell's corps reached Williamsport and remained there during the 16th, 17th, and 18th, to support Jenkins, and receive, and transmit to the rear, the cattle, horses, negroes, and provisions, taken by him.

The commotion created by the approach of the invader was not all one-sided. General Dix, who commanded at Fortress Monroe, received orders to advance on Richmond, which was weakly defended at this time. As through their manifold offences in the way of starving our prisoners, etc., the rebel President and his cabinet were afraid of reprisals, there was great dismay at the weakness of the garrison there, and bitter denunciations of Lee for leaving so small a force behind. The Union troops for this counter-invasion were landed at Yorktown and sent on to the White House. General Getty, in command of one column of about seven thousand men, moved on the 13th as far as Hanover Junction to destroy the bridge over the North and South Anna, and as much of the railroad as possible, in order to make a break in Lee's communications. At the same time General Keyes, with another column of about five thousand men, moved from the White House to secure Bottom's Bridge on the Chickahominy, and thus leave a clear road for Getty's column to advance on the city. The Davis Government, however, called out the militia and concentrated enough men for defence by weakening the garrisons in South Carolina and elsewhere; but there is no doubt the fright at one time was so serious that it was in contemplation to recall Lee's forces; especially on the 15th of June, when it was learned that General Keyes' column was at New Kent Court House within fifteen miles of the city.

On the 16th Stuart's cavalry left the Rappahannock—with the exception of the 15th Virginia, which remained with Hill—and bivouacked at Salem with Fitz Lee's brigade at Piedmont. Their orders were to keep along the eastern base of the Blue Ridge, and guard the front of Longstreet's corps in the Gaps.

Our own cavalry were concentrated at Warrenton and Catlett's.

On the 17th Fitz Lee's brigade was sent forward from Piedmont to Aldie, via Middleburg, to anticipate our troops in holding the Gap there; it being considered important to occupy the Bull Run range of mountains as a screen for Lee's further operations. Fitz Lee's brigade was supported by that of Robertson which was moved to Rectortown, where it was also available as a reserve to W. H. F. Lee's brigade which had gone forward to occupy Thoroughfare Gap. No opposition was anticipated in the latter place, Pleasonton having moved to Centreville, with his main body. Stuart made his headquarters at Middleburg on the 17th.

Fitz Lee halted near Dover to close up his command, and sent his pickets on to Aldie Gap. Pleasonton, who was scouting in the vicinity, had no orders to go through the pass, but felt prompted to do so by one of those presentiments which rarely deceive. He pushed on, therefore, with Gregg's division until about 2.30 P.M., when he came upon the rebel pickets, who fell back on the main body. The latter had made a march of forty miles to reach the Gap, and Fitz Lee chose a strong position on a hill directly west of Aldie, in which to fight a defensive battle. His line covered the road to Snicker's Gap, but could be turned by the road to Middleburg and Ashby's Gap.

A sanguinary contest ensued, which, including the pursuit, lasted until 9 P.M. The rebel front was strengthened by a ditch and a line of hay-stacks. After fighting for three hours the battle was finally decided by a gallant charge of the 1st Maine Cavalry, who, after our line had been broken and driven back, were led by Kilpatrick in person, against a regiment of mounted infantry on the Ashby's Gap road, capturing four guns. The Harris Light Cavalry had been in disfavor for having failed in an attack at Brandy Station, but on the present occasion they redeemed themselves, made several brilliant charges, and greatly contributed to the success of the day.

The rebels claim to have taken 134 prisoners, and some flags in this affair, and state that they only fell back to Middleburg in obedience to Stuart's orders. Ascertaining that Colonel Duffie was advancing on that place with his division, Stuart thought, by concentrating his entire force there, he could overwhelm him. This may account for the retreat, but it is very certain that the loss of the pass at Aldie was a serious blow to the rebel cause. This, supplemented by Colonel Duffie's operations, which will be described hereafter, gave Hooker possession of Loudon County, and threw the invading column far to the west. If the enemy had succeeded in posting forces in the gaps of the Bull Run range of mountains, and in occupying the wooded country between Thoroughfare Gap and Leesburg, they would not only have hidden all their own movements from view, but would have had command of the Potomac from Harper's Ferry to within thirty miles of Washington, so that they could have operated on either side of the river.

While Gregg's division were thus engaged, Colonel Duffie started under orders with his regiment from Centreville for Middleburg, by way of Thoroughfare Gap. The enemy (W. H. F. Lee's brigade) were already there, but he forced them out, and kept on to Middleburg, which was reached about 9.30 A.M. He found Stuart's rear guard or escort there, and drove them out. Stuart fell back to Rector's Cross Roads, and sent word to all his forces to concentrate against Duffie. Duffie barricaded the streets of the town and prepared to hold it until reinforcements could reach him from Aldie, not being aware that there was any impediment in that direction. At 7 P.M. the different rebel brigades advanced on him from the direction of Aldie, Union, and Upperville. By sheltering his men behind stone walls and barricades, he repelled several assaults, but at last was surrounded by overwhelming forces, and compelled to retreat by the road upon which he had advanced in the morning. He fell back until he crossed Little River, picketed the stream and halted there to get some rest. This gave time to the enemy to surround him, and by half past one the next morning all the roads in the neighborhood were full of cavalry; an entire brigade being formed on that which led to Aldie. He tried to force his way through the latter, but was received with heavy volleys on both flanks, and with loud calls to surrender. He directed Captain Bliss and Captain Bixby, who were in advance, to charge through everything in front of them, and the way was cleared for the main body, which at last gained the junction of the Aldie road with that which leads to White Plains. He then retreated on the latter, with his men all intermixed with those of the enemy and fighting every step of the way. He finally disengaged his force from this mélée and made his way through Hopewell Gap back to Centreville, losing two-thirds of his command.

In this affair at Middleburg, Stuart states that he was unable with his entire force to drive the 1st Rhode Island regiment from a position it had chosen, and speaks with admiration of the gallantry it displayed.

On the 18th, Stuart took post outside of that town with Robertson and W. H. F. Lee's brigade. Fitz Lee's brigade was on his left at Union, and Jones' brigade was ordered up as a reserve.

Pleasonton moved forward with all his available force and occupied Middleburg and Philemont on the road to Snicker's Gap; releasing some of Duffie's men who had been captured the day before. Gregg's division encountered the enemy a short distance beyond Middleburg and drove them five miles in the direction of Ashby's Gap. There was no regular line formation, but the Indian mode of fighting was adopted on both sides, by taking advantage of every stone, fence, bush, or hollow, to shelter the men. Before the action was over Kilpatrick's command came up and took a prominent part.

Buford's division, which had advanced beyond Philemont on the Snicker's Gap road, also became warmly engaged. They turned the left flank of the rebels and pressed on successfully, but the squadron left to guard the bridge over Goose Creek was overpowered by numbers and the bridge was burned. Part of Pleasonton's force made a reconnoissance toward Warrenton and engaged Hampton's brigade there.

On the 19th Pleasonton held the positions he had gained and sent back for an infantry support.

As there were indications that the whole of Stuart's cavalry would be thrown on Gregg's division at Upperville, Pleasonton went forward with his entire force and a brigade of infantry to support it. After a series of brilliant engagements he drove Start steadily back into Ashby's Gap, where he took refuge behind Longstreet's Corps, a portion of which came up. Pleasonton then returned to Upperville and next day to Aldie. The object of these movements— to gain possession of Loudon County—having been attained, Hooker was wary, and did not propose to be lured away from his strong position, to take part in cavalry battles at a distance without a definite object. He still found it difficult to realize that Lee would still further lengthen out his long line from Richmond, and endanger his communications, by invading Pennsylvania; and he therefore waited for further developments. Lee, however, impelled by public opinion behind him, which it was hardly safe to brave, still went forward, and directed Ewell to cross the Potomac with his main body and Longstreet to fall back behind the Shenandoah to act in conjunction with Hill, who had relieved Ewell at Winchester on the 17th, against any attempt to strike the rear of his long column. Like Achilles he felt that he was only vulnerable in his heel.

Several small skirmishes occurred about this time between detachments of General Schenck's command, which picketed the north bank of the Potomac, and bands of rebel partisans. The former were surprised and captured in two or three instances. In one of these expeditions a locomotive and twenty-three cars were disabled on the Baltimore and Ohio Railroad. Imboden, too, who occupied Cumberland on the 17th, in order to favor the general plan of invasion, tore up some miles of the track west of that town, with a view to prevent any reinforcements coming from that direction.

It would have been much better for the interests of the Southern Confederacy if Lee, instead of making a downright invasion, had been content to remain in the valley and threaten Hooker with two corps, while he used the third to procure unlimited supplies in Pennsylvania, and to sever all connection between the East and West, by breaking up the railroads and cutting the telegraph wires. Such a result, however, would hardly have been sufficient to meet the expectations of the Southern people, who were bent upon nothing else than the entire subjugation of the North and the occupation of our principal cities.

Pleasonton's operations having cleared the way, Hooker moved forward promptly on the 18th to occupy the gaps. The Twelfth Corps were sent to Leesburg, the Fifth to Aldie, and the Second to Thoroughfare Gap. The other corps formed a second line in reserve. This covered Washington and gave Hooker an excellent base of operations.

In answer to his demand for reinforcements, Crawford's division of Pennsylvania Reserves, and Abercrombie's division were sent to him. As the latter was just going out of service, it was of no use. Hooker contended that his army constituted the proper defence of Washington, and that it was not necessary to keep a large force inactive there, who could be of much more service at the front. The authorities were timid, however, did not see the force of this reasoning and therefore refused to place Schenck's and Heintzelman's commands under his orders.

The enemy made a feeble attempt about this time to occupy Harper's
Ferry, but were promptly shelled out by our batteries on Maryland
Heights.

Lee having failed, on account of the discomfiture of his cavalry, in crossing the Potomac at Edwards' Ferry, was forced either to remain where he was or go forward. Impelled by public opinion he kept on his way up the Cumberland Valley. Hooker being very desirous of keeping the invasion west of the Blue Ridge, asked Heintzelman to co-operate with him by sending the 2,000 men which seemed to be of no service at Poolesville to the passes of South Mountain, which is an extension of the same range; but Heintzelman said those passes were outside of his jurisdiction, and the men were needed in Poolesville. Hooker replied somewhat angrily that he would try and do without the men. The two generals had quarreled, and there was not the best feeling between them.

All of Ewell's corps were across the river on the 22d, and Jenkins' cavalry pushed on to Chambersburg. He was ordered to remain there until reinforced, but failed to do so, as Union troops were approaching from the direction of Carlisle.

Longstreet and Hill were left behind to prevent Hooker from striking the rear of this long column. Hooker still remained quiescent, engaged in trying to obtain 15,000 men as reinforcements. He was but partially successful, for as soon as the New York regiments reached Baltimore, Lockwood's brigade of Maryland troops, about three thousand, was ordered to join the Army of the Potomac, and was assigned to the Twelfth Corps.

The Army of the Potomac at this time was posted as follows: The Twelfth Corps at Leesburg, supported by the Eleventh on Goose Creek, between Leesburg and Aldie; the Fifth Corps near Aldie, and the Second at the next pass below, both supported by the Third Corps at Gum Springs. The First Corps was behind the Eleventh and Twelfth Corps, near Guilford, on the Loudon and Hampshire Railroad. Our cavalry, which had left Aldie, covered the approaches to Leesburg. On the 23d they had a sharp engagement at Dover, on the road from Aldie to Leesburg, with part of Stuart's force, who beat up their quarters, but they drove off their assailants without much difficulty.

Lee now, with a prudent regard to a possible defeat, requested the authorities at Richmond to have a reserve army under Beauregard assemble at Culpeper; a request which was looked upon by Davis as one quite impossible to carry out, owing to the scarcity of troops, and the necessity of reinforcing Johnston in the West and Beauregard in the South.

Two of Ewell's divisions, those of Rodes and Johnson, reached the frightened town of Chambersburg on the 23d. The other, under Early, took the road to York, via Gettysburg, and halted on that day at Waynesborough.

By this time twenty regiments of militia were on their way from
New York to Baltimore and Harrisburg.

Longstreet crossed the Potomac at Williamsport, and Hill at Shepherdstown, on the 24th. Their columns united at Hagerstown the next day. Thus supported, Ewell's main body resumed its march to Carlisle, which it occupied on the 27th; gathering large supplies there and along the road by means of foraging parties sent out to depredate on the farmers. As soon as they reached the town, Jenkins' brigade left for Harrisburg.

Hooker having now satisfied himself that the Capital was safe from a coup-de-main, and that the main body of the rebels were still marching up the Cumberland Valley, determined to move in a parallel line on the east side of South Mountain, where he could occupy the gaps at once, in case the enemy turned east, toward Washington and Baltimore. To carry out this design his army began to cross the Potomac at Edwards' Ferry on the 25th, and at night Reynolds' corps was in front and Sickles' corps in rear of Middletown, in readiness to hold either Crampton's or Turner's Gap. Howard's corps was thrown forward to Boonsborough.

On the 26th Slocum's corps was sent to Harper's Ferry to act in conjunction with the garrison there—supposed to be 10,000 strong —against the enemy's line of communication with Richmond. The Second, Fifth, and Sixth Corps were advanced to Frederick, Md., as a support to the First, Third, and Eleventh Corps. Gregg's cavalry division remained behind to cover the crossing, which was all completed the next day, after which they too marched to Frederick.

On the 25th, Early, leaving his division at Greenwood, went to Chambersburg to consult Ewell, who gave him definite orders to occupy York, break up the Central Railroad, burn the bridge over the Susquehanna at Wrightsville, and afterward rejoin the main body at Carlisle.

It seems strange that Lee should suppose that the Union army would continue inactive all this time, south of Washington, where it was only confronted by Stuart's cavalry, and it is remarkable to find him so totally in the dark with regard to Hooker's movements. It has been extensively assumed by rebel writers that this ignorance was caused by the injudicious raid made by Stuart, who thought it would be a great benefit to the Confederate cause if he could ride entirely around the Union lines and rejoin Lee's advance at York. He had made several of these circuits during his military career, and had gained important advantages from them in way of breaking up communications, capturing despatches, etc. It is thought that he hoped by threatening Hooker's rear to detain him and delay his crossing the river, and thus give time to Lee to capture Harrisburg, and perhaps Philadelphia. His raid on this occasion was undoubtedly a mistake. When he rejoined the main body, his men were exhausted, his horses broken down, and the battle of Gettysburg was nearly over. As cavalry are the eyes of an army, it has been said that Stuart's absence prevented Lee from ascertaining the movements and position of Hooker's army. Stuart has been loudly blamed by the rebel chroniclers for leaving the main body, but this is unjust; Lee not only knew of the movement, but approved it; for he directed Stuart to pass between Hooker and Washington, and move with part of his force to Carlisle and the other part to Gettysburg. Besides, Stuart left Robertson's and Jones' brigades behind, with orders to follow up the rear of the Union army until it crossed, and then to rejoin the main body. In the meantime they were to hold the gaps in the Blue Ridge, for fear Hooker might send a force to occupy them. These two brigades, with Imboden's brigade, and White's battalion, made quite a large cavalry force: Imboden, however, was also detached to break up the Baltimore and Ohio Railroad to prevent forces from the West from taking Lee in rear; all of which goes to show how sensitive the Confederate commander was in regard to any danger threatening his communications with Richmond.

At 1 A.M. on the 25th, Stuart started on his expedition and advanced to Haymarket, where he unexpectedly came upon Hancock's corps, which had left Thoroughfare Gap, and was on its way to Gum Springs. He opened fire against them but was soon driven off. He then returned to Buckland and Gainesville; for to keep on, in presence of our troops, would have frustrated the object of his expedition by indicating its purpose.

This was the day in which Longstreet and Hill united their columns at Hagerstown. Some Union spies who counted the rebel forces as they passed through the town made their number to be 91,000 infantry, 280 guns and 1,100 cavalry. This statement, though much exaggerated, gained great credence at the time, and added to the excitement among the loyal people throughout the Northern States, while the copperhead element were proportionally active and jubilant.

On the 26th, General French assumed command of the garrison at
Harper's Ferry, then posted at Maryland Heights.

On the same day the Richmond Government were much alarmed by the unexpected appearance of Colonel Spear's 11th Pennsylvania Cavalry within eleven miles of the city. Spear had made quite a successful and very destructive raid on the railroads and other lines of communication. He made, too, a very important capture by bringing in General W. H. F. Lee, who was wounded at the battle of Brandy Station, and who was a son of General Robert E. Lee. The Davis Government had determined to hang one of our captains who was a prisoner in Libby, and the fact that a son of General Robert E. Lee was in our power prevented them from carrying out their intention for fear he might be hanged by way of retaliation.

Early's division of Ewell's corps stopped at Gettysburg on its way to York. The other two divisions kept on toward Carlisle.

These movements at once caused Governor Curtin of Pennsylvania to call out 60,000 men for the defence of the State. They were styled the emergency militia. As there was little else than shot-guns for them, these hasty gatherings did not promise to be very effective.

The Governor still complained of a lack of zeal in Philadelphia.
The people there, said "Isn't this awful!" but very few volunteered.
They soon awoke from their apathy, however, and took prompt measures
to defend the city.

On the 27th the commands of Longstreet and Hill reached Chambersburg, and Ewell's two divisions occupied Carlisle, while Jenkins pushed on to Kingston, within thirteen miles of Harrisburg. At the same time Early was engaged in wreaking destruction upon the Northern Central Railroad, and by night he entered York. About the only opposition he encountered came from a militia regiment at Gettysburg, but this was soon driven away.

There was wild commotion throughout the North, and people began to feel that the boast of the Georgia Senator Toombs, that he would call the roll of his slaves at the foot of Bunker Hill Monument, might soon be realized. The enemy seemed very near and the Army of the Potomac far away.

On the same day Stuart succeeded with great difficulty in crossing the Potomac in the vicinity of Drainsville. He found our troops were now all north of this river, so that one object of his expedition —to detain them on the south side—had failed.

On the 28th he resumed his march, and as he passed close to Washington and Baltimore, he created considerable excitement in those cities. At Rockville he came upon a large train full of supplies, on its way to Frederick, Maryland, and captured it with its slender escort, after which he kept on in a northerly direction through Brookeville and Cookesville, travelling all night.

On this day the Adjutant-General at Richmond telegraphed for troops to be sent there at once from the Carolinas and elsewhere, for he estimated the Union forces at the White House at thirty thousand men, and considered the capital to be in great danger. Neither Davis nor his cabinet had the slightest desire to have any successes Lee might obtain at the North supplemented by their own execution at the South, a result they felt was not wholly improbable, in the excited state of public feeling at that time, if the city should be taken.

Lee, ignorant that Hooker was following him up, continued his aggressive advance. Early took prompt measures to seize the bridge over the Susquehanna at Wrightsville. If successful, he intended to cross over and amuse himself by destroying all direct connection between Philadelphia and the West, by railroad and telegraph. This done, he proposed to march along the north side of the river, capture Harrisburg and rejoin Ewell at Carlisle. As Gordon's brigade approached the bridge, after driving away some militia, they found it in flames, the Union commander at Columbia, Colonel Frick, having given orders for its destruction. Early gained some compensation for his failure in this respect by levying a contribution on York of one-hundred thousand dollars in cash; two hundred barrels of flour; thirty thousand bushels of corn; one thousand pairs of shoes, etc.

The Union army still remained in Frederick, with the left wing (three corps) under Reynolds thrown out toward the enemy, the Eleventh Corps under Howard at Boonsborough, the First Corps under my command at Middletown, supported by the Third Corps under Birney, two or three miles in rear, with Buford's division of cavalry holding the passes of South Mountain, the remainder of the cavalry being at Frederick.

Hooker thought it useless to keep a garrison of 10,000 men in a passive attitude at Harper's Ferry. I think he was quite right, for the war could not be decided by the possession of military posts or even of cities, for hostilities would never cease until one army or the other was destroyed. He therefore applied to Washington for permission to add this force to that of Slocum, in order that the two might act directly against Lee's communications by following up his rear while preserving their own line of retreat. Slocum had been already ordered there, for this purpose, but Halleck would not consent that the garrison of Harper's Ferry should be withdrawn under any circumstances, and positively refused Hooker's request. Hooker then considering himself thwarted in all his plans by the authorities at Washington, offered his resignation. It was promptly accepted, and Major-General George G. Meade, then the commander of the Fifth Corps, was assigned to the command of the Army of the Potomac. He was a general of fine intellect, of great personal bravery, and had had a good deal of experience in the war in handling troops, but had never achieved any brilliant success, or met with any serious reverse.

Upon ascertaining that the enemy were at York and Carlisle, Hooker had determined to throw out his different corps in a fan shape toward the Susquehanna, and advance in that direction with three corps on the left to defend that flank, in case Longstreet and Hill should turn East, instead of keeping on toward the North. At the same time it was his intention to have Slocum follow up Lee's advance, by keeping in his rear, to capture his trains and couriers, and to cut off his retreat should he be defeated.

General Meade's first order was for all the troops to concentrate in Frederick, where he proposed to have a grand review; but at the urgent remonstrance of General Butterfield, who had been Hooker's Chief of Staff, and who stated that this delay would give Lee time to cross the Susquehanna, and capture Harrisburg and Philadelphia, Hooker's orders were allowed to stand, with some exceptions. Meade appears to have disapproved all movements against Lee's line of retreat, for he ordered Slocum to rejoin the main army, and had the hardihood to break up the post at Harper's Ferry, in spite of the fact that Hooker had just been relieved from command for requesting permission to do so. The bulk of the garrison, under Major-General French, was directed to take post as a reserve at Frederick, when our forces moved forward. The general idea of our advance was to interpose between the enemy and Philadelphia if he went north, or between him and Baltimore and Washington in case he turned back. The orders at night were for Buford's division of cavalry to take post on the left flank, in the direction of Fairfield; Gregg's division on the right flank at Westminster; and Kilpatrick's division in advance of the centre, at Littlestown, the different corps to be posted between New Windsor and Emmetsburg.

Ewell's corps, as stated, were at Carlisle and York, Lee and
Longstreet's at Chambersburg, and Hill's corps at Fayetteville.

Lee was startled to learn from a countryman who came in on the 28th that Hooker was at Frederick, and not south of the Potomac, as he had supposed. He saw at once that his communications with Richmond, about which he was so solicitous, were greatly endangered, for the Union army could be formed to interpose between him and Williamsport, and still keep a safe line of retreat open to Washington. This might not be so great a misfortune to the enemy as regards food and forage; for he could probably live on the country for some time, by making predatory excursions in different directions, but when it came to obtaining fresh supplies of ammunition, the matter would become very serious. An army only carries a limited amount of this into the field and must rely upon frequent convoys to keep up the supply, which is constantly decreasing from the partial engagements and skirmishes, so prevalent in a hostile country.

The wisdom of Hooker's policy in desiring to assail the rebel communications is demonstrated by the fact the Lee immediately turned back. The head of the serpent faced about as soon as its tail was trodden upon. He came to the conclusion to prevent an attack against his rear by threatening Baltimore with his whole force. This would necessarily cause the Union army to march further east to confront him, and thus prevent it from operating in heavy force in the Cumberland Valley. Accordingly on the night of the 28th, Lee sent expresses to all his corps commanders to concentrate at Gettysburg. If he had known that Meade was about to withdraw all the troops acting against his line of retreat he would probably have gone on and taken Harrisburg.

As the new commander of the Union army was a favorite of General Halleck, no notice was taken of his disregard of instructions in detaching the garrison of Harper's Ferry. General Couch, who commanded the Department of the Susquehanna, was also placed under his orders, a favor which had been denied to Hooker. The troubles of the latter were not quite over, for on his appearing in Washington to explain his action, he was immediately put under arrest for visiting the Capital without his (Halleck's) permission; a piece of petty persecution which might have been spared under the circumstances. It was, however, a short and easy method of settling all complaints that were inconvenient to answer.