At two o'clock on the morning of Monday, the 19th of September, on the very day when Sheridan had told Grant he would be ready to move, but just three hours earlier, Sheridan put his army in motion toward the Opequon, covering his flank by directing Merritt and Averell on Stephenson's. He sent Wilson rapidly ahead on the Berryville road to carry the ford and to seize the long and deep defile on the left or east bank through which the main column would have to advance. Wright was to lead the infantry, closely followed by Emory, who, in order to solidify the movement, was instructed to take his orders from Wright after reaching the ford. Crook, coming in from his more distant position, would naturally fall in the rear of the others, and he was to mass his men in reserve, covering the ford. Wright had to move partly across country, and had farther to go than Emory. Although both started punctually at the appointed hour, it happened that, about five o'clock, the head of Wright's column ran into Emory's in march near the crest, whence the road sweeps down to the Opequon. There Emory halted, by Wright's orders, to let the Sixth Corps pass. Unfortunately, minute and thorough as Sheridan's plans and instructions were, he appears to have underrated the double difficulty of crossing the ford and threading the long defile, for to this cause must be attributed the presence of Wright's entire wagon-train in the rear of his corps, as well as the excess of artillery for the work and the field. The head of the column could move but slowly; thus the rear was so long retarded, that, although the crossing began about six o'clock, and the whole movement was urged on by Sheridan, Wright, and Emory, and indeed by every one, it wanted but twenty minutes of noon when the line of battle was finally formed on the rolling ground overlooking the vale of the Opequon to the rear and Winchester to the front. Even as it was, Sheridan's eagerness being great, and the delay seeming interminable, Emory felt obliged to take upon himself the responsibility of departing from the strict order of march, and directed Dwight to move his men to the right of the road and pass the train. Thus it had taken six hours to advance three miles and to form in order of battle, and the immediate effect of this delay was that Sheridan had now to deal, not only with Ramseur, or with the two divisions counted on, but with the whole of Early's army; for between five and six o'clock in the morning Gordon, Rodes, and Wharton were all at Stephenson's, distant only five miles from Winchester or from the field of battle, toward which they all moved rapidly at the sound of the first firing, due to Wilson's advance.
Opequon Creek flows at the foot of a broad and thickly wooded gorge, with high and steep banks. The ravine through which the Berryville road rises to the level of the rolling plain, in the middle of whose western edge stands Winchester, is nearly three miles long. Here and there the high ground is covered with large oaks, pines, and undergrowth, and is intersected by many brooks, called runs. Of these the largest is Red Bud Run, which forms a smaller parallel ravine flanking the defile on the north, while a still larger stream, called Abraham's Creek, after pursuing a nearly parallel course on the south side of the defile, crosses the road not far from the ford, and just below it falls into the Opequon.
Wilson, after crossing the Opequon and completing his task of covering the advance of the infantry through the defile, had turned to the left on the high ground and taken post to cover the flank on the Senseny road, which, after crossing the Opequon about a mile and a quarter above the main ford, reaches the outskirts of Winchester at a point little more than three hundred yards from the Berryville road. The Sixth Corps formed across the Berryville road, Getty on its left, Ricketts on its right. Getty rested his left on Abraham's Creek. Behind him Russell stood in column in support. Emory prolonged the line of battle to the Red Bud on the right by posting Sharpe's and Birge's brigades of Grover, with Molineux and Shunk in the second line, the 9th Connecticut deployed as skirmishers to cover the right flank of Birge. Dwight's two brigades formed on the right and rear of Grover in echelon of regiments on the right, in order not only to support Grover's line, but to cover the flank against any turning movement by the Confederates or an attack by their reinforcements coming straight from Stephenson's. Beal's brigade held the right of Dwight's line, and the brigade line from right to left was formed in order of the 114th New York, 153d New York, 116th New York, 29th Maine, and 30th Massachusetts. Beal covered his right flank by a detail of skirmishers taken from all his regiments and commanded by Lieutenant-Colonel Strain, of the 153d New York. McMillan, on the left and rear of Beal, formed in order of the 47th Pennsylvania, 8th Vermont, 160th New York, and 12th Connecticut, with five companies of the 47th Pennsylvania deployed to cover the whole right flank of his brigade and to move forward with it by the flank left in front. Crook had by this time crossed the ford and was massed on the left or west bank.
In climbing the hill the Berryville road follows nearly a northwesterly course, but soon after reaching the high ground bends rather sharply toward the left, crosses the ravine called Ash Hollow forming the head of Berryville Cañon, and runs for nearly a mile almost westerly. Wright was following the road, but as Emory guided upon Wright, the alignment was to be preserved by Sharpe's keeping his left in touch with the right of Ricketts. While the ground in Wright's front was for the most part open, Emory was chiefly in the dense wood, where the heavy leafage and undergrowth prevented him from seeing not only the enemy before him, but also the full extent of his own line. It should be observed with care that Ricketts was between Sharpe and the Berryville road, while the road was between Getty and Ricketts, and formed the guide for both; for these facts, of slight importance though they may seem, were destined presently to exert an influence wellnigh fatal on the fortunes of the day.
During the early hours of the morning Ramseur, on the Berryville road, and the cavalry of Lomax on the Senseny road, had been the only Confederate force between Sheridan and Winchester. But first Gordon came up at nine o'clock, and placed himself opposite Emory's right, his own left resting on the line of the Red Bud; then Rodes, closely following Gordon, formed between him and Ramseur against the right of Emory and the left of Wright.
About a quarter before twelve o'clock, at the sound of Sheridan's bugle, repeated from corps, division, and brigade headquarters, the whole line moved forward with great spirit, and instantly became engaged. Wilson pushed back Lomax, Wright drove in Ramseur, while Emory, advancing his infantry rapidly through the wood, where he was unable to use his artillery, attacked Gordon with great vigor. Birge, charging with bayonets fixed, fell upon the brigade of Evans, forming the extreme left of Gordon, and without a halt drove it in confusion through the wood and across the open ground beyond to the support of Braxton's artillery, posted by Gordon to secure his flank on the Red Bud road. In this brilliant charge, led by Birge in person, his lines naturally became disordered, and Grover, foreseeing the effect of an advance so swift and tumultuous, ordered Birge to halt and re-form in the wood. This order Birge tried to execute; but whether the words of command were not heard or were misunderstood, or in the wild excitement of the moment were wilfully disregarded by the men, certain it is that their officers found it impossible to restrain their ardor until they had followed on the run the broken fragments of Evans quite through the wood and beyond its farther skirt, where Braxton, using his guns with energy and skill, brought them to a stand.
Sharpe, advancing simultaneously on Birge's left, tried in vain to keep the alignment with Ricketts and with Birge; for now the peculiar feature of the long alignment across the swerving road began to work, yet, by reason of the screen of timber, without the cause being immediately observed by any one. At first the order of battle formed a right angle with the road, but the bend once reached, in the effort to keep closed upon it, at every step Ricketts was taking ground more and more to the left, while the point of direction for Birge, and equally for Sharpe, was the enemy in their front, standing almost in the exact prolongation of the defile, from which line, still plainly marked by Ash Hollow, the road, as we have seen, was steadily diverging. In short, to continue the march parallel with the road compelled a left half-wheel, while the battle was with the enemy straight in front, so that even had it been possible for Emory to execute his orders literally he must have offered his wheeling flank fairly to Rodes and to Gordon.
Sharpe, seeing that the gap between himself and Ricketts was growing every moment wider, in vain tried to cover it by more than one oblique movement to the left, and Keifer, whose brigade formed the right of Ricketts, being also among the first to perceive the fault, tried to make it good by deploying three of his regiments across the interval.
Birge's advance had borne him far to the right, and as Sharpe, in the vain attempt to keep his alignment with Ricketts, was always drifting to the left, there came a second and smaller gap between the two leading brigades of Grover. Into this Molineux was quickly thrust, and, deploying in parade order, under a heavy fire of cannon and musketry, at once began firing in return with great effect on the advancing columns of the enemy. But, shortly before this happened, the interval between Ricketts and Sharpe had grown to be nearly four hundred yards wide, and Birge's advance being stayed at nearly the same instant, Early saw his opportunity and seized it by throwing against the diverging flanks of Sharpe and Ricketts the fresh brigade that Battle had that moment brought up from Stephenson's. This new impulse once more carried forward the rest of Rodes's division; Ramseur rallied; Early restored his formation; and the whole Confederate line swept forward with renewed impetuosity, broke in the whole right of Ricketts and the left of Sharpe, surged around both flanks of Molineux, and swept back Birge. Sharpe's line, thus taken fairly in flank, was quickly rolled up. By this, the left regiment of Molineux, the gallant 22d Iowa, being in quite open ground, was greatly exposed, so that it, too, was presently swept back. The 159th New York and the 13th Connecticut, after holding on stiffly for a time under the partial cover of a sort of gully, were in like manner swept away, and on the right Birge's men paid the penalty of their own impetuosity. The left of Ricketts, less exposed to the shock, stood firm, and the right of Molineux, isolated as it was, held its ground; but otherwise the whole front of the battle, from the road to the Red Bud, was gone. As the Confederates charged down upon a section of Bradbury's 1st Maine Battery, posted about the centre of the division, Day, who under many drawbacks had brought up his regiment, the 131st New York, to a high standard of discipline and efficiency, took prompt and full advantage of the slight cover afforded by the little wooded ravine in which he happened to be. With equal coolness and readiness he changed front forward on his tenth company, yet held his fire until he could see the shoulders and almost the backs of the enemy; then, pouring in a hot fire, and being immediately supported by the 11th Indiana, part of the 3d Massachusetts, and the 176th New York, which had quickly rallied from Sharpe's reverse, the attacking force was driven back in disorder; but unfortunately, in retiring it swept across the remains of Molineux's left centre, which had been cut off in the gully, and took many prisoners, especially from among the officers who had stood to their posts through everything.
Just as when victory had seemed about to alight on the standard of the Union, the very perch itself had been suddenly and rudely shaken by the tread of Early's charging columns; so now, at the precise moment when defeat—bitter, perhaps disastrous defeat—seemed inevitable, the fortunes of the battle were once more reversed, and the day was suddenly saved by the prompt and orderly advance of Russell into the fatal gap. As he changed front from the wood to the right and swept on in splendid array, it happened that the charging line of Early, already disarranged by its own success, offered its right flank to Russell's front. Russell himself, bravely leading his division, fell, yet not until he had struck the blow that gave the victory to the defenders of his country,—a noble sacrifice in a noble cause.