Sedgwick’s diagonal march exposed his left to a scattering fire from Walker’s left brigade under M. Ransom, but he kept his steady march while Walker increased his fire. McLaws increasing his fire staggered the march of Sedgwick, and presently arrested it. The regiments under Colonels Stafford and Grigsby, coming from their lurking-places, opened fire on Sedgwick’s right rear. At McLaws’s opening Sedgwick essayed to form line of battle; the increasing fire on his right and left rear, with the terrible fire in front, was confusing, but the troops were eager to return the fire they found pouring into their lines from three-quarters of a circle. To counter the rear fire of Walker, General Sumner ordered the rear brigade to face about. The troops, taking this to mean a rearward march, proceeded to execute it without awaiting further orders, which was soon followed by the other brigades.

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McLaws and Walker, pushing their success, were joined by G. T. Anderson’s, the brigades of D. H. Hill’s left, and those of R. H. Anderson’s division, making strong battle through the woodland and open to the post-and-rail fence and to the Roulette House, where they encountered Sumner’s division under French, and parts of the Twelfth Corps rallied on that part of the field. This contention was firm and wasting on both sides, but held with persevering courage until Richardson’s reserve, under Brooke, was put against Hill’s right and broke the Confederate line back to the woodlands south of the chapel, where Early’s regiments had formed a rallying line.

When Hill’s right was struck and pressed so severely, Rodes’s brigade, the reserve of his division, was ordered out to support his right. The brigade advanced in good strong battle, but General Rodes reported that he could not move his Sixth Alabama Regiment in time, notwithstanding his personal efforts; that with the support of that regiment the battle line of the Confederates could have waited other supports.

General Sumner was eager in riding with his leading division. He was always anxious to get in in time to use all of his power, and thought others like himself. Had he formed the corps into lines of divisions, in close echelon, and moved as a corps, he would have marched through and opened the way for Porter’s command at bridge No. 2, and Pleasonton’s cavalry, and for Burnside at the third bridge, and forced the battle back to the river bank.

He was criticised for his opposition to Franklin’s proposed attack, but the chances are even that he was right. The stir among Franklin’s troops was observed from a dead angle of our lines, and preparations were made to meet it. General Jackson was marching back to us, and it is possible that the attack might have resulted in mingling our troops with Franklin’s down on the banks of the Antietam.

After this fight the artillery battalions of S. D. Lee and Frobel, quite out of ammunition, retired to replenish. The battery of Napoleons was reduced to one section, that short of ammunition and working hands.

General Hill rallied the greater part of G. B. Anderson’s and Rodes’s brigades in the sunken road. Some of Ripley’s men came together near Miller’s guns at the Hagerstown pike. General R. H. Anderson and his next in rank, General Wright, were wounded. The next officer, General Pryor, not advised of his new authority, the brigades assembled at points most suited to their convenience, in rear of D. H. Hill’s brigades.

But time was up. Confederate affairs were not encouraging. Our men were all leg-weary and heavy to handle, while McClellan, with his tens of thousands, whom he had marched in healthful exercise the past two weeks, was finding and pounding us from left to right under converging fire of his batteries east and west of the Antietam.