Early on the morning of the 12th May, my division left its position on Rocky Face and marched through Tunnel Hill station. General Schofield, finding the shorter road to Snake Creek Gap blocked by wagons of the Cumberland Army, ordered a detour to the west, and we marched over to the Trickum and Villanow road, some two miles, and then pushing southward got within three miles of Villanow. It was evident that our movement and that of the whole army were visible from the high ridge of Rocky Face. Johnston was aware of them, and telegraphed to Richmond that Sherman was moving to Calhoun or to some point on the Oostanaula. [Footnote: Official Records, vol. xxxviii. pt. iv. p. 698.] He put everything in motion upon his interior line to Resaca, and the last of his infantry left Dalton that night, covered by a cavalry rear-guard. [Footnote: Id., p. 160.] Howard entered the place next morning.

Taking only a short rest, my division marched again at one o'clock through Villanow and Snake Creek Gap into Sugar Valley, followed by Judah's division of our corps, the other (Hovey's) being left to guard the gap and the trains. McPherson's army covered the direct road to Resaca, having Kilpatrick's cavalry on its right flank toward the Oostanaula; Thomas's army was in the centre, consisting of two corps (Hooker's and Palmer's) in Howard's absence; and Schofield was ordered to continue the curve to the left, my own division being the flank and directed to rest the left upon the ridge or near it, facing northward.

The different corps advanced from McPherson's intrenchments to the new line which was near Camp Creek on the Resaca road, facing east, thence curving north and west through a quarter circle to my position on the left close to the dominant ridge, and about four miles north of Sugar Valley P. O. on the main Dalton road. I sent Hanson's brigade forward to reconnoitre toward Tilton (where Howard was), and it reached Martin's store, at the forks of the Dalton and Tilton roads and the crossing of Swamp Creek. A Confederate division had left that position only an hour before, marching toward Resaca. [Footnote: Official Records, vol. xxxviii. pt. ii. p. 675. In the official Atlas (compiled after the war), plate lvii. map 2, Martin's Store is given as Roberts' Store, and the position of the enemy there is marked.]

Later in the afternoon the centre and left of the whole army swung forward toward the east into the line along Camp Creek, quite away from the Dalton road. Reilly's brigade of my division was therefore left as a detachment covering that road until we should know that Howard had advanced beyond Tilton. A regiment of Hanson's brigade was left as an outpost at Martin's store, and the rest of the brigade marched across country by the right of companies to the front, keeping touch with Judah's division and this with the left of the Army of the Cumberland. It was a rough march over ridges and streams through the forest, on the long outer curve, of which the pivot was several miles to the southeast.

Sherman had hoped to be in time to interpose between Resaca and Johnston's army, as he had said in his orders of the 12th, [Footnote: Id., pt. iv. p. 158.] but the Confederates had the short interior line, and Johnston had been able to concentrate about Resaca in the course of the 13th, his rear-guard resisting Howard's advance at Tilton, and his left under Polk holding some high hills west of Camp Creek in front of Resaca which commanded the railroad bridge over the Oostanaula. With the latter exception his chosen line of defence was on the broken ridge between the Connasauga River and Camp Creek, which were nearly parallel to each other for some miles.

On the morning of the 14th the advance was renewed, guided as before by the progress of the Army of the Tennessee on the right and continuing the wheeling movement toward the east. My right brigade (Manson) continued its connection with the rest of the army, but Reilly's had a very difficult and laborious march. I ordered it to advance a mile upon the road it had covered during the night, and then by the right flank to position in line with the rest of the command. After leaving the road Reilly had to break his way through the woods, crossing sharp and deep ravines and watercourses, with no path or landmark to guide him. It was especially difficult for the artillery, and that they got through at all proved that the officers and men were experts in woodcraft. The regiment at Martin's store remained there as an outpost during the day.

Reilly came into line about ten o'clock, and we rested an hour till our flankers reported Howard's corps within supporting distance coming from Tilton. We were on the west bank of the main stream of Camp Creek, where its upper course makes an angle with the lower, some small branches coming into it from the northeast. The valley itself was open, and the change in its direction allowed it to be enfiladed by the enemy's batteries at the angle. Generals Thomas and Schofield were together upon a hill having a commanding view, and at the word from them, "The line will advance," we moved forward into the valley from the slope before them. Each brigade was in two lines, and the artillery was left on the hither side of the valley to cover the movement and reply to the enemy's cannonade. The skirmish line had been advanced to the edge of the woods on the far side, and kept the lead until we approached the Confederate trenches. We passed over two or three ridges and ravines, driving back the skirmishers of the enemy, and charged the line of earthworks on the crest of a higher ridge. Our men dropped fast as we went forward, but the line was carried and the Confederates broke from the next ridge in rear, some two hundred yards away. The direction of these ridges was such that our left was constantly thrown forward as we passed from one to another.

Judah's division on our right had not succeeded in crossing Camp Creek, and our flank was exposed to a galling artillery fire, as the ridge on which we were had its shoulder bare when it came out into the valley, whose curve gave the enemy an enfilading fire upon us. His infantry sought also to drive us out of the position we had captured, and the fighting was heavy for an hour or two. But Howard's corps came up on our left, and we made firm our hold on the hills we had gained, forcing the Confederates to adopt a new line curving to the eastward.

The division had lost 562 men, and our ammunition was nearly exhausted. [Footnote: Official Records, vol. xxxviii. pt. ii. pp. 676-679.] Wagons could not follow us, and toward evening Generals Thomas and Schofield arranged to relieve us with Newton's division of Howard's corps, let us replenish the cartridge boxes, and then pass to the left. This brought again the Army of the Cumberland together, and gave us our usual position on the flank. Newton's men came over part of the ground we had traversed, and as they crossed the open we saw them under the enemy's cannonade, the balls here and there bowling them over like tenpins. Harker's brigade came up to relieve Manson's, which was the most exposed, and Manson and I were standing together arranging the details, our horses being under cover in the edge of the wood. Harker rode up to confer with us and learn the situation, and as we talked, a shell exploded among us, the concussion stunning Manson and a fragment slightly wounding Harker. Manson's experience was a curious illustration of the effect of such an accident. He was unaware of his hurt, and only thought, in the moment of failing consciousness as he fell, that the motion was that of his companions flying upward instead of his own falling; and on coming to himself in the hospital began to speak his sorrow for what he supposed was the death of his friends. He himself never fully recovered from the effects of the concussion. Colonel Opdycke's regiment was one of the first in the winning column, and his men were hardly placed in the line before he was led back, wounded; but as soon as his wound was dressed and he had recovered a little from the shock, he was back at his post. The place was so hot a one that Harker's brigade also exhausted its ammunition and had to be relieved before the left of my own line was moved.