It will not be wondered at, therefore, if to my mind the story of the eight o'clock order is an instance of the way in which an erroneous recollection is based upon the desire to make the facts accord with a theory. The actual time must have been as much later than nine o'clock as the period during which, with absorbed attention, we had been watching the battle on the right,--a period, it is safe to say, much longer than it seemed to us. The judgment of the hour which I gave in my report was merely my impression from passing events, for I hastened at once to my own duties without thinking to look at my watch; whilst the cumulative evidence seems to prove, conclusively, that the time stated by Burnside, and by McClellan himself in his original report, is correct. The order, then, to Burnside to attack was not sent at eight o'clock, but reached him at ten; it was not sent to follow up an advantage gained by Hooker and Sumner, but to create, if possible, a strong diversion in favor of the imperilled right wing when the general outlook was far from reassuring.

McClellan truly said, in his original report, that the task of carrying the bridge in front of Burnside was a difficult one. [Footnote: Official Records, vol. xix. pt. i. p. 31.] The hill on which I have placed the station of General Burnside was the bolder and more prominent crest of the line of hills which skirted the Antietam on the east, and was broken by depressions here and there, through which the country roads ran down to the stream. Such a hollow was just at the south of Burnside's position at the haystack on the Rohrback farm. In rear of him and a little lower down were the farm buildings, and from these a road ran down the winding hollow to the Antietam, but reached the stream several hundred yards below the bridge. Following the road, therefore, it was necessary to turn up stream upon the narrow space between the hills and the water, without any cover from the fire of the enemy on the opposite side. The bluffs on that side were wooded to the water's edge, and were so steep that the road from the bridge could not go up at right angles to the bank, but forked both ways and sought the upper land by a more gradual ascent to right and left. The fork to the right ran around a shoulder of the hill into a ravine which there reaches the Antietam, and thence ascends by an easy grade toward Sharpsburg. The left branch of the road rises by a similar but less marked depression.

These roads were faced by stone fences, and the depth of the valley and its course made it impossible to reach the enemy's position at the bridge by artillery fire from the hill-tops on our side. Not so from the enemy's position, for the curve of the valley was such that it was perfectly enfiladed near the bridge by the Confederate batteries at the position now occupied by the National Cemetery. The bridge itself was a stone structure of three arches with stone parapets on the sides. These curved outward at the end of the bridge to allow for the turn of the roadway. On the enemy's side, the stone fences came down close to the bridge.

The Confederate defence of the passage was intrusted to D. R. Jones's division of six brigades, [Footnote: Official Records, vol. xix. pt. i. p. 804.] which was the one Longstreet himself had disciplined and led till he was assigned to a larger command. Toombs's brigade was placed in advance, occupying the defences of the bridge itself and the wooded slopes above, while the other brigades supported him, covered by the ridges which looked down upon the valley. The division batteries were supplemented by others from the enemy's reserve, and the valley, the bridge, and the ford below were under the direct and powerful fire of shot and shell from the Confederate cannon. Toombs's force, thus strongly supported, was as large as could be disposed of at the head of the bridge, and abundantly large for resistance to any that could be brought against it. Our advance upon the bridge could only be made by a narrow column, showing a front of eight men at most; but the front which Toombs deployed behind his defences was three or four hundred yards both above and below the bridge. He himself says in his report: [Footnote: Official Records, vol. xix. pt. i. p. 890.] "From the nature of the ground on the other side, the enemy were compelled to approach mainly by the road which led up the river near three hundred paces parallel with my line of battle and distant therefrom from fifty to a hundred and fifty feet, thus exposing his flank to a destructive fire the most of that distance." Under such circumstances the Confederate position was nearly impregnable against a direct attack over the bridge; for the column approaching it was not only exposed at almost pistol-range to the perfectly covered infantry of the enemy and to two batteries which were assigned to the special duty of supporting Toombs, having the exact range of the little valley with their shrapnel; but, if it should succeed in reaching the bridge, its charge across it must be made under a fire ploughing through its length, the head of the column melting away as it advanced, so that, as every soldier knows, it could show no front strong enough to make an impression upon the enemy's breastworks, even if it should reach the other side. As a desperate sort of diversion in favor of the right wing, it might be justifiable; but I believe that no officer or man who knew the actual situation at that bridge thinks that a serious attack upon it was any part of McClellan's original plan. Yet, in his detailed report of 1863, instead of speaking of it as the difficult task the original report had called it, he treats it as little different from a parade or march across which might have been done in half an hour.

Burnside's view of the matter was that the front attack at the bridge was so difficult that the passage by the ford below must be an important factor in the task; for if Rodman's division should succeed in getting across there, at the bend of the Antietam, he would come up in rear of Toombs, and either the whole of D. R. Jones's division would have to advance to meet Rodman, or Toombs must abandon the bridge. In this I certainly concurred, and Rodman was ordered to push rapidly for the ford. It is important to remember, however, that Walker's Confederate division had been posted during the earlier morning to hold that part of the Antietam line, supporting Toombs as well, [Footnote: Official Records, vol. xix. pt. i. p. 914.] and it was probably from him that Rodman suffered the first casualties that occurred in his ranks. But, as we have seen, Walker had been called away by Lee only an hour before, and had made the hasty march by the rear of Sharpsburg to fall upon Sedgwick. If therefore Rodman had been sent to cross at eight o'clock, it is safe to say that his column, fording the stream in the face of Walker's deployed division, would never have reached the further bank,--a contingency that McClellan did not consider when arguing, long afterward, the favorable results that might have followed an earlier attack. As Rodman died upon the field, no full report for his division was made, and we only know that he met with some resistance from both infantry and artillery; that the winding of the stream made his march longer than he anticipated, and that, in fact, he only approached the rear of Toombs's position from that direction about the time when our last and successful charge upon the bridge was made, between noon and one o'clock.

The attacks at the Burnside bridge were made under my own eye. Sturgis's division occupied the centre of our line, with Crook's brigade of the Kanawha division on his right front, and Willcox's division in reserve, as I have already stated. Crook's position was somewhat above the bridge, but it was thought that by advancing part of Sturgis's men to the brow of the hill, they could cover the advance of Crook, and that the latter could make a straight dash down the hill to our end of the bridge. The orders were accordingly given, and Crook advanced, covered by the Eleventh Connecticut (of Rodman's) under Colonel Kingsbury, deployed as skirmishers. [Footnote: Official Records, vol. xix. pt. i. pp. 419, 424.] In passing over the spurs of the hills, Crook came out on the bank of the stream above the bridge and found himself under a heavy fire at short range. He faced the enemy and returned the fire, getting such cover for his men as he could and trying to drive off or silence his opponents. The engagement was one in which the Antietam prevented the combatants from coming to close quarters, but it was none the less vigorously continued with musketry fire. Crook reported that his hands were full and that he could not approach closer to the bridge. Later in the contest, his men, lining the stream, made experiments in trying to get over, and found a fordable place a little way above, by which he got over five companies of the Twenty-eighth Ohio at about the same time as the final and successful charge. But on the failure of Crook's first effort, Sturgis ordered forward an attacking column from Nagle's brigade, supported and covered by Ferrero's brigade, which took position in a field of corn on one of the lower slopes of the hill opposite the head of the bridge. The whole front was carefully covered with skirmishers, and our batteries on the heights overhead were ordered to keep down the fire of the enemy's artillery. Nagle's effort was gallantly made, but it failed, and his men were forced to seek cover behind the spur of the hill from which they had advanced. [Footnote: Official Records, vol. xix. pt. i. p. 444.] We were constantly hoping to hear something from Rodman's advance by the ford, and would gladly have waited for some more certain knowledge of his progress, but at this time McClellan's sense of the necessity of relieving the right was such that he was sending reiterated orders to push the assault. Not only were these forwarded to me, but to give added weight to my instructions, Burnside sent direct to Sturgis urgent messages to carry the bridge at all hazards.

I directed Sturgis to take two regiments from Ferrero's brigade, which had not been engaged, and make a column by moving them together by the flank, the one left in front and the other right in front, side by side, so that when they passed the bridge they could turn to left and right, forming line as they advanced on the run. He chose the Fifty-first New York, Colonel Robert B. Potter, and the Fifty-first Pennsylvania, Colonel John F. Hartranft (both names afterward greatly distinguished), and both officers and men were made to feel the necessity of success. [Footnote: Ibid.] At the same time Crook succeeded in bringing a light howitzer of Simmonds's mixed battery down from the hill-tops, and placed it where it had a point-blank fire on the further end of the bridge. The howitzer was one we had captured in West Virginia, and had been added to the battery, which was partly made up of heavy rifled Parrott guns. When everything was ready, a heavy skirmishing fire was opened all along the bank, the howitzer threw in double charges of canister, and in scarcely more time than it takes to tell it, the bridge was passed and Toombs's brigade fled through the woods and over the top of the hill. The charging regiments were advanced in line to the crest above the bridge as soon as they were deployed, and the rest of Sturgis's division, with Crook's brigade, were immediately brought over to strengthen the line. These were soon joined by Rodman's division, with Scammon's brigade, which had crossed at the ford, and whose presence on that side of the stream had no doubt made the final struggle of Toombs's men less obstinate than it would otherwise have been, the fear of being taken in rear having always a strong moral effect upon even the best of troops.

It was now about one o'clock, and nearly three hours had been spent in a bitter and bloody contest across the narrow stream. The successive efforts to carry the bridge had been as closely following each other as possible. Each had been a fierce combat, in which the men with wonderful courage had not easily accepted defeat, and even, when not able to cross the bridge, had made use of the walls at the end, the fences, and every tree and stone as cover, while they strove to reach with their fire their well-protected and nearly concealed opponents. The lulls in the fighting had been short, and only to prepare new efforts. The severity of the work was attested by our losses, which, before the crossing was won, exceeded 500 men, and included some of our best officers, such as Colonel Kingsbury of the Eleventh Connecticut, Lieutenant-Colonel Bell of the Fifty-first Pennsylvania, and Lieutenant-Colonel Coleman of the Eleventh Ohio, two of them commanding regiments. [Footnote: Official Records, vol. xix. pt. i. p. 427.] The proportion of casualties to the number engaged was much greater than common; for the nature of the combat required that comparatively few troops should be exposed at once, the others remaining under cover.

Our next task was to prepare to hold the heights we had gained against the return assault of the enemy which we expected, and to reply to the destructive fire from the enemy's abundant artillery. Light batteries were brought over and distributed in the line. The men were made to lie down behind the crest to save them from the concentrated cannonade which the enemy opened upon us as soon as Toombs's regiments succeeded in reaching their main line. But McClellan's anticipation of an overwhelming attack upon his right was so strong that he determined still to press our advance, and sent orders accordingly. The ammunition of Sturgis's and Crook's men had been nearly exhausted, and it was imperative that they should be freshly supplied before entering into another engagement. Sturgis also reported his men so exhausted by their efforts as to be unfit for an immediate advance. On this I sent to Burnside the request that Willcox's division be sent over, with an ammunition train, and that Sturgis's division be replaced by the fresh troops, remaining, however, on the west side of the stream as support to the others. This was done as rapidly as was practicable, where everything had to pass down the steep hill-road and through so narrow a defile as the bridge. [Footnote: As a mode of ready reckoning, it is usual to assume that a division requires an hour to march past a given point by the flank. With the crossing of an ammunition train, the interval of time is more than accounted for.] Still, it was three o'clock before these changes and preparations could be made. Burnside had personally striven to hasten them, and had come over to the west bank to consult and to hurry matters, and took his share of personal peril, for he came at a time when the ammunition wagons were delivering cartridges, and the road at the end of the bridge where they were was in the range of the enemy's constant and accurate fire. It is proper to mention this because it has been said that he did not cross the stream. The criticisms made by McClellan as to the time occupied in these changes and movements will not seem forcible if one will compare them with any similar movements on the field; such as Mansfield's to support Hooker, or Sumner's or Franklin's to reach the scene of action. About this, however, there is fair room for difference of opinion: what I personally know is that it would have been folly to advance again before Willcox had relieved Sturgis, and that as soon as the fresh troops reported and could be put in line, the order to advance was given. McClellan is in accord with all other witnesses in declaring that when the movement began, the conduct of the troops was gallant beyond criticism.

Willcox's division formed the right, Christ's brigade being north, and Welsh's brigade south of the road leading from the bridge to Sharpsburg. Crook's brigade of the Kanawha division supported Willcox. Rodman's division formed on the left, Harland's brigade having the position on the flank, and Fairchild's uniting with Willcox at the centre. Scammon's brigade was the reserve for Rodman at the extreme left. [Footnote: Official Records, vol. xix. pt. i. pp. 425, 430.] Sturgis's division remained and held the crest of the hill above the bridge. About half of the batteries of the divisions accompanied the movement, the rest being in position on the hill-tops east of the Antietam. The advance necessarily followed the high ground toward Sharpsburg, and as the enemy made strongest resistance toward our right, the movement curved in that direction, the six brigades of Jones's Confederate division being deployed diagonally across our front, holding the stone fences and crests of the cross-ridges and aided by abundant artillery, in which arm the enemy was particularly strong.