I enjoyed this the more because, the evening before, a little incident had occurred which had threatened to result in some ill-feeling. It had been thought that we were likely to be attacked at Ridgeville, and on reaching the village I disposed the division so as to cover the place and to be ready for an engagement. I ordered the brigades to bivouac in line of battle, covering the front with outposts and with cavalry vedettes from the Sixth New York Cavalry (Colonel Devin), which had been attached to the division during the advance. The men were without tents, and to make beds had helped themselves to some straw from stacks in the vicinity. Toward evening General Reno rode up, and happening first to meet Lieutenant-Colonel Rutherford B. Hayes, commanding the Twenty third Ohio, he rather sharply inquired why the troops were not bivouacking "closed in mass," and also blamed the taking of the straw. Colonel Hayes referred him to me as the proper person to account for the disposition of the troops, and quietly said he thought the quartermaster's department could settle for the straw if the owner was loyal. A few minutes later the general came to my own position, but was now quite over his irritation. I, of course, knew nothing of his interview with Hayes, and when he said that it was the policy in Maryland to make the troops bivouac in compact mass, so as to do as little damage to property as possible, I cordially assented, but urged that such a rule would not apply to the advance-guard when supposed to be in presence of the enemy; we needed to have the men already in line if an alarm should be given in the night. To this he agreed, and a pleasant conversation followed. Nothing was said to me about the straw taken for bedding, and when I heard of the little passage-at-arms with Colonel Hayes, I saw that it was a momentary disturbance which had no real significance. Camp gossip, however, is as bad as village gossip, and in a fine volume of the "History of the Twenty-first Massachusetts Regiment," I find it stated that the Kanawha division coming fresh from the West was disposed to plunder and pillage, giving an exaggerated version of the foregoing story as evidence of it. This makes it a duty to tell what was the small foundation for the charge, and to say that I believe no regiments in the army were less obnoxious to any just accusation of such a sort. The gossip would never have survived the war at all but for the fact that Colonel Hayes became President of the United States, and the supposed incident of his army life thus acquired a new interest. [Footnote: This incident gives me the opportunity to say that after reading a good many regimental histories, I am struck with the fact that with the really invaluable material they contain when giving the actual experiences of the regiments themselves, they also embody a great deal of mere gossip. As a rule, their value is confined to what strictly belongs to the regiment; and the criticisms, whether of other organizations or of commanders, are likely to be the expression of the local and temporary prejudices and misconceptions which are notoriously current in time of war. They need to be read with due allowance for this. The volume referred to is a favorable example of its class, but its references to the Kanawha division (which was in the Ninth Corps only a month) illustrate the tendency I have mentioned. It should be borne in mind that the Kanawha men had the position of advance-guard, and I believe did not camp in the neighborhood of the other divisions in a single instance from the time we left Leesboro till the battle of South Mountain. What is said of them, therefore, is not from observation. The incident between Reno and Hayes occurred in the camp of the latter, and could not possibly be known to the author of the regimental history but by hearsay. Yet he affirms as a fact that the Kanawha division "plundered the country unmercifully," for which Reno "took Lieutenant-Colonel Hayes severely though justly to task." He also asserts that the division set a "very bad example" in straggling. As to this, the truth is as I have circumstantially stated it above. He has still further indulged in a "slant" at the "Ohioans" in a story of dead Confederates being put in a well at South Mountain,--a story as apocryphal as the others. Wise's house and well were within the camp of the division to which the Twenty-first Massachusetts belonged, and the burial party there would have been from that division. Lastly, the writer says that General Cox, the temporary corps commander, "robs us [the Twenty-first Massachusetts] of our dearly bought fame" by naming the Fifty-first New York and Fifty-first Pennsylvania as the regiments which stormed the bridge at Antietam. He acquits Burnside and McClellan of the alleged injustice, saying they "follow the corps report in this respect." Yet mention is not made of the fact that my report literally copies that of the division commander, who himself selected the regiments for the charge! The "Ohioan" had soon gone west again with his division, and was probably fair game. There is something akin to provincialism in regimental esprit de corps, and such instances as the above, which are all found within a few pages of the book referred to, show that, like Leech's famous Staffordshire rough in the Punch cartoon, to be a "stranger" is a sufficient reason to "'eave 'arf a brick at un." See letters of President Hayes and General Crook on the subject, Appendix B.]

From New Market we sent the regiment of cavalry off to the right to cover our flank, and to investigate reports that heavy bodies of the enemy's cavalry were north of us. The infantry pushed rapidly toward Frederick. The opposition was very slight till we reached the Monocacy River, which is perhaps half a mile from the town. Here General Wade Hampton, with his brigade as rear-guard of Lee's army, attempted to resist the crossing. The highway crosses the river by a substantial stone bridge, and the ground upon our bank was considerably higher than that on the other side. We engaged the artillery of the enemy with a battery of our own, which had the advantage of position, whilst the infantry forced the crossing both by the bridge and by a ford a quarter of a mile to the right. As soon as Moor's brigade was over, it was deployed on the right and left of the turnpike, which was bordered on either side by a high and strong post-and-rail fence. Scammon's was soon over, and similarly deployed as a second line, with the Eleventh Ohio in column in the road. Moor had with him a troop of horse and a single cannon, and went forward with the first line, allowing it to keep abreast of him on right and left. I also rode on the turnpike between the two lines, and only a few rods behind Moor, having with me my staff and a few orderlies. Reno was upon the other bank of the river, overlooking the movement, which made a fine military display as the lines advanced at quick-step toward the city. Hampton's horsemen had passed out of our sight, for the straight causeway turned sharply to the left just as it entered the town, and we could not see beyond the turn. We were perhaps a quarter of a mile from the city, when a young staff officer from corps headquarters rode up beside me and exclaimed in a boisterous way, "Why don't they go in faster? There's nothing there!" I said to the young man, "Did General Reno send you with any order to me?" "No," he replied. "Then," said I, "when I want your advice I will ask it." He moved off abashed, and I did not notice what had become of him, but, in fact, he rode up to Colonel Moor, and repeated a similar speech. Moor was stung by the impertinence which he assumed to be a criticism upon him from corps headquarters, and, to my amazement, I saw him suddenly dash ahead at a gallop with his escort and the gun. He soon came to the turn of the road where it loses itself among the houses; there was a quick, sharp rattling of carbines, and Hampton's cavalry was atop of the little party. There was one discharge of the cannon, and some of the brigade staff and escort came back in disorder. I ordered up at "double quick" the Eleventh Ohio, which, as I have said, was in column in the road, and these, with bayonets fixed, dashed into the town. The enemy had not waited for them, but retreated out of the place by the Hagerstown road. Moor had been ridden down, unhorsed, and captured. The artillery-men had unlimbered the gun, pointed it, and the gunner stood with the lanyard in his hand, when he was struck by a charging horse; the gun was fired by the concussion, but at the same moment it was capsized into the ditch by the impact of the cavalry column. The enemy had no time to right the gun or carry it off, nor to stop for prisoners. They forced Moor on another horse, and turned tail as the charging lines of infantry came up on right and left as well as the column in the road, for there had not been a moment's pause in the advance. It had all happened, and the gun with a few dead and wounded of both sides were in our hands, in less time than it has taken to describe it. Those who may have a fancy for learning how Munchausen would tell this story, may find it in the narrative of Major Heros von Borke of J. E. B. Stuart's staff. [Footnote: Von Borke's account is so good an example of the way in which romance may be built up out of a little fact that I give it in full. The burning of the stone bridge half a mile in rear of the little affair was a peculiarly brilliant idea; but he has evidently confused our advance with that on the Urbana road. He says: "Toward evening the enemy arrived in the immediate neighborhood of Monocacy bridge, and observing only a small force at this point, advanced very carelessly. A six-pounder gun had been placed in position by them at a very short distance from the bridge, which fired from time to time a shot at our horsemen, while the foremost regiment marched along at their ease, as if they believed this small body of cavalry would soon wheel in flight. This favorable moment for an attack was seized in splendid style by Major Butler, who commanded the two squadrons of the Second South Carolina Cavalry, stationed at this point as our rear-guard. Like lightning he darted across the bridge, taking the piece of artillery, which had scarcely an opportunity of firing a shot, and falling upon the regiment of infantry, which was dispersed in a few seconds, many of them being shot down, and many others, among whom was the colonel in command, captured. The colors of the regiment also fell into Major Butler's hands. The piece of artillery, in the hurry of the moment, could not be brought over to our side of the river, as the enemy instantly sent forward a large body of cavalry at a gallop, and our dashing men had only time to spike it and trot with their prisoners across the bridge, which, having been already fully prepared for burning, was in a blaze when the infuriated Yankees arrived at the water's edge. The conflagration of the bridge of course checked their onward movement, and we quietly continued the retreat." Von Borke, vol. i. p. 203. Stuart's report is very nearly accurate: Official Records, vol. xix. pt. i. p. 816.] Moor's capture, however, had consequences, as we shall see. The command of his brigade passed to Colonel George Crook of the Thirty-sixth Ohio.

Frederick was a loyal city, and as Hampton's cavalry went out at one end of the street and our infantry came in at the other, and whilst the carbine smoke and the smell of powder still lingered, the closed window-shutters of the houses flew open, the sashes went up, the windows were filled with ladies waving their handkerchiefs and national flags, whilst the men came to the column with fruits and refreshments for the marching soldiers as they went by in the hot sunshine of the September afternoon. [Footnote: Although at the head of the column, the "truth of history" compels me to say that I saw nothing of Barbara Frietchie, and heard nothing of her till I read Whittier's poem in later years. When, however, I visited Frederick with General Grant in 1869, we were both presented with walking-sticks made from timbers of Barbara's house which had been torn down, and, of course, I cannot dispute the story of which I have the stick as evidence; for Grant thought the stick shut me up from any denial and established the legend.] Pleasonton's cavalry came in soon after by the Urbana road, and during the evening a large part of the army drew near the place. Next morning (13th) the cavalry went forward to reconnoitre the passes of Catoctin Mountain, Rodman's division of our corps being ordered to support them and to proceed toward Middletown in the Catoctin valley. Through some misunderstanding Rodman took the road to Jefferson, leading to the left, where Franklin's corps was moving, and did not get upon the Hagerstown road. About noon I was ordered to march upon the latter road to Middletown. McClellan himself met me as my column moved out of town, and told me of the misunderstanding in Rodman's orders, adding that if I found him on the march I should take his division also along with me. [Footnote: As is usual in such cases, the direction was later put in writing by his chief of staff. Official Records, vol. li. pt. i. p. 827.] I did not meet him, but the other two divisions of the corps crossed Catoctin Mountain that night, whilst Rodman returned to Frederick. The Kanawha division made an easy march, and as the cavalry was now ahead of us, met no opposition in crossing Catoctin Mountain or in the valley beyond. On the way we passed a house belonging to a branch of the Washington family, and a few officers of the division accompanied me, at the invitation of the occupant, to look at some relics of the Father of his Country which were preserved there. We stood for some minutes with uncovered heads before a case containing a uniform he had worn, and other articles of personal use hallowed by their association with him, and went on our way with our zeal strengthened by closer contact with souvenirs of the great patriot. Willcox's division followed us, and encamped a mile and a half east of Middletown. Sturgis's halted not far from the western foot of the mountain, with corps headquarters near by. My own camp for the night was pitched in front (west) of the village of Middletown along Catoctin Creek. Pleasonton's cavalry was a little in advance of us, at the forks of the road where the old Sharpsburg road turns off to the left from the turnpike. The rest of the army was camped about Frederick, except Franklin's corps (Sixth), which was near Jefferson, ten miles further south but also east of Catoctin Mountain.

The Catoctin or Middletown valley is beautifully included between Catoctin Mountain and South Mountain, two ranges of the Blue Ridge, running northeast and southwest. It is six or eight miles wide, watered by Catoctin Creek, which winds southward among rich farms and enters the Potomac near Point of Rocks. The National road leaving Frederick passes through Middletown and crosses South Mountain, as it goes northwestward, at a depression called Turner's Gap. The old Sharpsburg road crosses the summit at another gap, known as Fox's, about a mile south of Turner's. Still another, the old Hagerstown road, finds a passage over the ridge at about an equal distance north. The National road, being of easier grades and better engineering, was now the principal route, the others having degenerated to rough country roads. The mountain crests are from ten to thirteen hundred feet above the Catoctin valley, and the "gaps" are from two to three hundred feet lower than the summits near them. [Footnote: These elevations are from the official map of the U.S. Engineers.] These summits are like scattered and irregular hills upon the high rounded surface of the mountain top. They are wooded, but along the southeasterly slopes, quite near the top of the mountain, are small farms, with meadows and cultivated fields.

The military situation had been cleared up by the knowledge of Lee's movements which McClellan got from a copy of Lee's order of the day for the both. This had been found at Frederick on the 13th, and it tallied so well with what was otherwise known that no doubt was left as to its authenticity. It showed that Jackson's corps with Walker's division were besieging Harper's Ferry on the Virginia side of the Potomac, whilst McLaws's division supported by Anderson's was co-operating on Maryland Heights. [Footnote: Official Records, vol. xix. pt. ii. pp. 281, 603.] Longstreet, with the remainder of his corps, was at Boonsboro or near Hagerstown. D. H. Hill's division was the rear-guard, and the cavalry under Stuart covered the whole, a detached squadron being with Longstreet, Jackson, and McLaws each. The order did not name the three separate divisions in Jackson's command proper (exclusive of Walker), nor those remaining with Longstreet except D. H. Hill's; but it is hardly conceivable that these were not known to McClellan after his own and Pope's contact with them during the campaigns of the spring and summer. At any rate, the order showed that Lee's army was in two parts, separated by the Potomac and thirty or forty miles of road. As soon as Jackson should reduce Harper's Ferry they would reunite. Friday the 12th was the day fixed for the concentration of Jackson's force for his attack, and it was Saturday when the order fell into McClellan's hands. Three days had already been lost in the slow advance since Lee had crossed Catoctin Mountain, and Jackson's artillery was now heard pounding at the camp and earthworks of Harper's Ferry. McLaws had already driven our forces from Maryland Heights, and had opened upon the ferry with his guns in commanding position on the north of the Potomac. [Footnote: Id., p. 607.] McClellan telegraphed to the President that he would catch the rebels "in their own trap if my men are equal to the emergency." [Footnote: Official Records, vol. xix. pt. ii. p. 281.] There was certainly no time to lose. The information was in his hands before noon, for he refers to it in a dispatch to Mr. Lincoln at twelve. If his men had been ordered to be at the top of South Mountain before dark, they could have been there; but less than one full corps passed Catoctin Mountain that day or night, and when the leisurely movement of the 14th began, he himself, instead of being with the advance, was in Frederick till after 2 P.M., at which hour he sent a dispatch to Washington, and then rode to the front ten or twelve miles away. The failure to be "equal to the emergency" was not in his men. Twenty-four hours, as it turned out, was the whole difference between saving and losing Harper's Ferry with its ten or twelve thousand men and its unestimated munitions and stores. It may be that the commanders of the garrison were in fault, and that a more stubborn resistance should have been made. It may be that Halleck ought to have ordered the place to be evacuated earlier, as McClellan suggested. Nevertheless, at noon of the 13th McClellan had it in his power to save the place and interpose his army between the two wings, of the Confederates with decisive effect on the campaign. He saw that it was an "emergency," but did not call upon his men for any extraordinary exertion. Harper's. Ferry surrendered, and Lee united the wings of his army beyond the Antietam before the final and general engagement was forced upon him.

At my camp in front of Middletown, I received no orders looking to a general advance on the 14th; but only to support, by a detachment, Pleasonton's cavalry in a reconnoissance toward Turner's Gap. Pleasonton himself came to my tent in the evening, and asked that one brigade might report to him in the morning for the purpose. Six o'clock was the hour at which he wished them to march. He said further that he and Colonel Crook were old army acquaintances and that he would like Crook to have the detail. I wished to please him, and not thinking that it would make any difference to my brigade commanders, intimated that I would do so. But Colonel Scammon, learning what was intended, protested that under our custom his brigade was entitled to the advance next day, as the brigades had taken it in turn. I explained that it was only as a courtesy to Pleasonton and at his request that the change was proposed. This did not better the matter in Scammon's opinion. He had been himself a regular officer, and the point of professional honor touched him. I recognized the justice of his demand, and said he should have the duty if he insisted upon it. Pleasonton was still in the camp visiting with Colonel Crook, and I explained to him the reasons why I could not yield to his wish, but must assign Scammon's brigade to the duty in conformity with the usual course. There was in fact no reason except the personal one for choosing one brigade more than the other, for they were equally good. Crook took the decision in good part, though it was natural that he should wish for an opportunity of distinguished service, as he had not been the regular commandant of the brigade. Pleasonton was a little chafed, and even intimated that he claimed some right to name the officer and command to be detailed. This, of course, I could not admit, and issued the formal orders at once. The little controversy had put Scammon and his whole brigade upon their mettle, and was a case in which a generous emulation did no harm. What happened in the morning only increased their spirit and prepared them the better to perform what I have always regarded as a very brilliant exploit.

The morning of Sunday the 14th of September was a bright one. I had my breakfast very early and was in the saddle before it was time for Scammon to move. He was prompt, and I rode on with him to see in what way his support was likely to be used. Two of the Ninth Corps batteries (Gibson's and Benjamin's) had accompanied the cavalry, and one of these was a heavy one of twenty-pounder Parrotts. They were placed upon a knoll a little in front of the cavalry camp, about half a mile beyond the forks of the old Sharpsburg road with the turnpike. They were exchanging shots with a battery of the enemy well up in the gap. Just as Scammon and I crossed Catoctin Creek I was surprised to see Colonel Moor standing at the roadside. With astonishment I rode to him and asked how he came there. He said that he had been taken beyond the mountain after his capture, but had been paroled the evening before, and was now finding his way back to us on foot. "But where are you going?" said he. I answered that Scammon was going to support Pleasonton in a reconnoissance into the gap. Moor made an involuntary start, saying, "My God! be careful!" then checking himself, added, "But I am paroled!" and turned away. I galloped to Scammon and told him that I should follow him in close support with Crook's brigade, and as I went back along the column I spoke to each regimental commander, warning them to be prepared for anything, big or little,--it might be a skirmish, it might be a battle. Hurrying to camp, I ordered Crook to turn out his brigade and march at once. I then wrote a dispatch to General Reno, saying I suspected we should find the enemy in force on the mountain top, and should go forward with both brigades instead of sending one. Starting a courier with this, I rode forward again and found Pleasonton. Scammon had given him an inkling of our suspicions, and in the personal interview they had reached a mutual good understanding. I found that he was convinced that it would be unwise to make an attack in front, and had determined that his horsemen should merely demonstrate upon the main road and support the batteries, whilst Scammon should march by the old Sharpsburg road and try to reach the flank of the force on the summit. I told him that in view of my fear that the force of the enemy might be too great for Scammon, I had determined to bring forward Crook's brigade in support. If it became necessary to fight with the whole division, I should do so, and in that case I should assume the responsibility myself as his senior officer. To this he cordially assented.

One section of McMullin's six-gun battery was all that went forward with Scammon (and even these not till the infantry reached the summit), four guns being left behind, as the road was rough and steep. There were in Simmonds's battery two twenty-pounder Parrott guns, and I ordered these also to remain on the turnpike and to go into action with Benjamin's battery of the same calibre. It was about half-past seven when Crook's head of column filed off from the turnpike upon the old Sharpsburg road, and Scammon had perhaps half an hour's start. We had fully two miles to go before we should reach the place where our attack was actually made, and as it was a pretty sharp ascent the men marched slowly with frequent rests. On our way up we were overtaken by my courier who had returned from General Reno with approval of my action and the assurance that the rest of the Ninth Corps would come forward to my support.

When Scammon had got within half a mile of Fox's Gap (the summit of the old Sharpsburg road), [Footnote: The Sharpsburg road is also called the Braddock road, as it was the way by which Braddock and Washington had marched to Fort Duquesne (Pittsburg) in the old French war. For the same reason the gap is called Braddock's Gap. I have adopted that which seems to be in most common local use.] the enemy opened upon him with case-shot from the edge of the timber above the open fields, and he had judiciously turned off upon a country road leading still further to the left, and nearly parallel to the ridge above. His movement had been made under cover of the forest, and he had reached the extreme southern limit of the open fields south of the gap on this face of the mountain. Here I overtook him, his brigade being formed in line under cover of the timber, facing open pasture fields having a stone wall along the upper side, with the forest again beyond this. On his left was the Twenty-third Ohio under Lieutenant-Colonel R. B. Hayes, who had been directed to keep in the woods beyond the open, and to strike if possible the flank of the enemy. His centre was the Twelfth Ohio under Colonel Carr B. White, whose duty was to attack the stone wall in front, charging over the broad open fields. On the right was the Thirtieth Ohio, Colonel Hugh Ewing, who was ordered to advance against a battery on the crest which kept up a rapid and annoying fire. It was now about nine o'clock, and Crook's column had come into close support. Bayonets were fixed, and at the word the line rushed forward with loud hurrahs. Hayes, being in the woods, was not seen till he had passed over the crest and turned upon the enemy's flank and rear. Here was a sharp combat, but our men established themselves upon the summit and drove the enemy before them. White and Ewing charged over the open under a destructive fire of musketry and shrapnel. As Ewing approached the enemy's battery (Bondurant's), it gave him a parting salvo, and limbered rapidly toward the right along a road in the edge of the woods which follows the summit to the turnpike near the Mountain House at Turner's Gap. White's men never flinched, and the North Carolinians of Garland's brigade (for it was they who held the ridge at this point) poured in their fire till the advancing line of bayonets was in their faces when they broke away from the wall. Our men fell fast, but they kept up their pace, and the enemy's centre was broken by a heroic charge. Garland strove hard to rally his men, but his brigade was hopelessly broken in two. He rallied his right wing on the second ridge a little in rear of that part of his line, but Hayes's regiment was here pushing forward from our left. Colonel Ruffin of the Thirteenth North Carolina held on to the ridge road beyond our right, near Fox's Gap. The fighting was now wholly in the woods, and though the enemy's centre was routed there was stubborn resistance on both flanks. His cavalry dismounted (said to be under Colonel Rosser [Footnote: Stuart's Report, Official Records, vol. xix. pt. i. p. 817.] ) was found to extend beyond Hayes's line, and supported the Stuart artillery, which poured canister into our advancing troops. I now ordered Crook to send the Eleventh Ohio (under Lieutenant-Colonel Coleman) beyond Hayes's left to extend our line in that direction, and to direct the Thirty-sixth Ohio (Lieutenant-Colonel Clark) to fill a gap between the Twelfth and Thirtieth caused by diverging lines of advance. The only remaining regiment (the Twenty-eighth, Lieutenant-Colonel Becker) was held in reserve on the right. The Thirty-sixth aided by the Twelfth repulsed a stout effort of the enemy to re-establish their centre. The whole line again sprung forward. A high knoll on our left was carried. The dismounted cavalry was forced to retreat with their battery across the ravine in which the Sharpsburg road descends on the west of the mountain, and took a new position on a separate hill in rear of the heights at the Mountain House. There was considerable open ground at this new position, from which their battery had full play at a range of about twelve hundred yards upon the ridge held by us. But the Eleventh and Twenty-third stuck stoutly to the hill which Hayes had first carried, and their line was nearly parallel to the Sharpsburg road, facing north. Garland had rushed to the right of his brigade to rally them when they had broken before the onset of the Twenty-third Ohio upon the flank, and in the desperate contest there he had been killed and the disaster to his command made irreparable. On our side Colonel Hayes had also been disabled by a severe wound as he gallantly led the Ohio regiment.