This development rendered useless any further effort on Hancock's part or mine to carry out the plan of the expedition, for General Grant did not intend Hancock to assault the enemy's works unless there should be found in them but a very thin line of infantry which could be surprised. In such event, Hancock was to operate so that the cavalry might turn the Confederates on the Central or Charles City road, but the continually increasing force of the enemy showed this to be impracticable. The long front presented by Hancock's corps and the cavalry deceived General Lee, and he undoubtedly thought that nearly all of Grant's army had been moved to the north side of the James River; and to meet the danger he transferred the most of his own strength to the same side to confront his adversary, thinning the lines around Petersburg to reinforce those opposing us on the Central and New Market roads. This was what Grant hoped Lee would do in case the operations of Hancock and myself became impracticable, for Grant had an alternative plan for carrying Petersburg by assault in conjunction with the explosion of a mine that had been driven under the enemy's works from the front of Burnside's corps.
Now that there was no longer a chance for the cavalry to turn the enemy's left, our attention was directed to keeping up the deception of Lee, and on the afternoon of the 28th Hancock's corps withdrew to a line nearer the head of the bridge, the cavalry drawing back to a position on his right. From now on, all sorts of devices and stratagems were practiced—anything that would tend to make the Confederates believe we were being reinforced, while Hancock was preparing for a rapid return to Petersburg at the proper time. In order to delude the enemy still more after night-fall of the 28th I sent one of my divisions to the south side of the James, first covering the bridgeway with refuse hay to keep the tramp of the horses from being heard. After daylight the next morning, I marched this division back again on foot, in full view of the enemy, to create the impression of a continuous movement large bodies of infantry to the north side, while the same time Kautz was made to skirmish with the enemy on our extreme right. These various artifices had the effect intended, for by the evening of the 29th Lee had transferred all his infantry to the north bank of the James, except three divisions, and all his cavalry save one.
The morning of the 30th had been fixed upon to explode the mine and assault the enemy's works, so after dark on the evening of the 29th Hancock hastily but quietly withdrew his corps to the south side to take part in the engagement which was to succeed the explosion, and I was directed to follow Hancock. This left me on the north side of the river confronting two-thirds of Lee's army in a perilous position, where I could easily be driven into Curl's Neck and my whole command annihilated. The situation, therefore, was not a pleasant one to contemplate, but it could not be avoided. Luckily the enemy did not see fit to attack, and my anxiety was greatly relieved by getting the whole command safely across the bridge shortly after daylight, having drawn in the different brigades successively from my right. By 10 o'clock on the morning of the 3oth my leading division was well over toward the left of our army in front of Petersburg, marching with the purpose to get around the enemy's right flank during the operations that were to succeed the mine explosion, but when I reached General Meade's headquarters I found that lamentable failure had attended the assault made when the enemy's works were blown up in the morning. Blunder after blunder had rendered the assault abortive, and all the opportunities opened by our expedition to the north side were irretrievably lost, so General Meade at once arrested the movement of the cavalry.
In the expedition to Deep Bottom I was under the command of Major-General Hancock, who, by seniority, was to control my corps as well as his own until the way was opened for me to get out on the Virginia Central railroad. If this opportunity was gained, I was to cut loose and damage Lee's communications with the Shenandoah Valley in such manner as best suited the conditions, but my return was not to be jeopardized nor long delayed. This necessitated that Hancock's line should extend to Bottom's bridge on the Chickahominy. The enemy's early discovery of the movement and his concentration of troops on the north side prevented Hancock from accomplishing the programme laid out for him. Its impracticability was demonstrated early on the 27th, and Hancock's soldierly instincts told him this the moment he unexpectedly discovered Kershaw blocking the New Market and Charles City roads. To Hancock the temptation to assault Kershaw's position was strong indeed, but if he carried it there would still remain the dubious problem of holding the line necessary for my safe return, so with rare judgment he desisted zealously turning to the alternative proposition—the assault on Petersburg—for more significant results. This was the only occasion during the war in which I was associated with Hancock in campaign. Up till then we had seldom met, and that was the first opportunity I had to observe his quick apprehension, his physical courage, and the soldierly personality which had long before established his high reputation.
On the 1st of August, two days after the mine explosion, I was. relieved from the personal command of the Cavalry Corps, and ordered to the Shenandoah Valley, where at a later date Torbert's and Wilson's divisions joined me. Practically, after I went to the valley, my command of the Cavalry Corps became supervisory merely. During the period of my immediate control of the corps, I tried to carry into effect, as far as possible, the views I had advanced before and during the opening of the Wilderness campaign, i.e., "that our cavalry ought to fight the enemy's cavalry, and our infantry the enemy's infantry"; for there was great danger of breaking the spirit of the corps if it was to be pitted against the enemy's compact masses of foot-troops posted behind intrenchments, and unless there was some adequate tactical or strategical advantage to be gained, such a use of it would not be justified. Immediately succeeding the battles of the Wilderness, opportunity offered to put this plan into execution to some extent, and from that time forward—from the battle of Yellow Tavern—our success was almost continuous, resulting finally, before the close of the war, in the nearly total annihilation of the enemy's cavalry.
The constant activity of the corps from May 5 till August 1 gave little opportunity for the various division and brigade commanders to record its work in detail; so there exists but meagre accounts of the numerous skirmishes and graver conflicts in which, in addition to the fights mentioned in this narrative, it engaged. A detailed history of its performances is not within the province of a work of this nature; but in review, it can be said, without trespassing on the reader's time, that the Cavalry Corps led the advance of the Army of the Potomac into the Wilderness in the memorable campaign of 1864; that on the expedition by way of Richmond to Haxall's it marked out the army's line of march to the North Anna; that it again led the advance to the Tolopotomy, and also to Cold Harbor, holding that important strategic point at great hazard; and that by the Trevillian expedition it drew away the enemy's cavalry from the south side of the Chickahominy, and thereby assisted General Grant materially in successfully marching to the James River and Petersburg. Subsequently, Wilson made his march to Staunton bridge, destroying railroads and supplies of inestimable value, and though this was neutralized by his disaster near Ream's Station, the temporary set-back there to one division was soon redeemed by victory over the Confederate infantry at the battle of Darbytown.
In the campaign we were almost always on the march, night and day, often unable to care properly for our wounded, and obliged to bury our dead where they fell; and innumerable combats attest the part the cavalry played in Grant's march from the Rapidan to Petersburg. In nearly all of these our casualties were heavy, particularly so when, as was often the case, we had to engage the Confederate infantry; but the enemy returned such a full equivalent in dead and wounded in every instance, that finally his mounted power, which from the beginning of the war had been nurtured with a wise appreciation of its value, was utterly broken.
CHAPTER XXIII.
GENERAL HUNTER'S SUCCESSFUL MARCH AND SUBSEQUENT RETREAT—GENERAL JUBAL A. EARLY THREATENS WASHINGTON—CHAMBERSBURG, PA., BURNED—SELECTED TO OPERATE AGAINST GENERAL EARLY—THE SHENANDOAH VALLEY—THE CONFEDERATE ARMY.
When the attempt to take Petersburg in conjunction with the mine explosion resulted in such a dismal failure, all the operations contemplated in connection with that project came to a standstill, and there was every prospect that the intensely hot and sultry weather would prevent further activity in the Army of the Potomac till a more propitious season. Just now, however, the conditions existing in the Shenandoah Valley and along the upper Potomac demanded the special attention of General Grant, for, notwithstanding the successful march that Major-General David Hunter had made toward Lynchburg early in the summer, what he had first gained was subsequently lost by strategical mistakes, that culminated in disaster during the retreat he was obliged to make from the vicinity of Lynchburg to the Kanawha Valley. This route of march uncovered the lower portion of the Valley of the Shenandoah, and with the exception of a small force of Union troops under General Franz Sigel posted aft Martinsburg for the purpose of covering the Baltimore and Ohio railroad, there was nothing at hand to defend the lower valley.