Had McClernand come up with reasonable promptness, or had I known the ground as I did afterwards, I cannot see how Pemberton could have escaped with any organized force. As it was he lost over three thousand killed and wounded and about three thousand captured in battle and in pursuit. Loring's division, which was the right of Pemberton's line, was cut off from the retreating army and never got back into Vicksburg. Pemberton himself fell back that night to the Big Black River. His troops did not stop before midnight and many of them left before the general retreat commenced, and no doubt a good part of them returned to their homes. Logan alone captured 1,300 prisoners and eleven guns. Hovey captured 300 under fire and about 700 in all, exclusive of 500 sick and wounded whom he paroled, thus making 1,200.
McPherson joined in the advance as soon as his men could fill their cartridge-boxes, leaving one brigade to guard our wounded. The pursuit was continued as long as it was light enough to see the road. The night of the 16th of May found McPherson's command bivouacked from two to six miles west of the battlefield, along the line of the road to Vicksburg. Carr and Osterhaus were at Edward's station, and Blair was about three miles south-east; Hovey remained on the field where his troops had fought so bravely and bled so freely. Much war material abandoned by the enemy was picked up on the battle-field, among it thirty pieces of artillery. I pushed through the advancing column with my staff and kept in advance until after night. Finding ourselves alone we stopped and took possession of a vacant house. As no troops came up we moved back a mile or more until we met the head of the column just going into bivouac on the road. We had no tents, so we occupied the porch of a house which had been taken for a rebel hospital and which was filled with wounded and dying who had been brought from the battle-field we had just left.
While a battle is raging one can see his enemy mowed down by the thousand, or the ten thousand, with great composure; but after the battle these scenes are distressing, and one is naturally disposed to do as much to alleviate the suffering of an enemy as a friend.
CHAPTER XXXVI.
BATTLE OF BLACK RIVER BRIDGE—CROSSING THE BIG BLACK—INVESTMENT OF VICKSBURG—ASSAULTING THE WORKS.
We were now assured of our position between Johnston and Pemberton, without a possibility of a junction of their forces. Pemberton might have made a night march to the Big Black, crossed the bridge there and, by moving north on the west side, have eluded us and finally returned to Johnston. But this would have given us Vicksburg. It would have been his proper move, however, and the one Johnston would have made had he been in Pemberton's place. In fact it would have been in conformity with Johnston's orders to Pemberton.
Sherman left Jackson with the last of his troops about noon on the 16th and reached Bolton, twenty miles west, before halting. His rear guard did not get in until two A.M. the 17th, but renewed their march by daylight. He paroled his prisoners at Jackson, and was forced to leave his own wounded in care of surgeons and attendants. At Bolton he was informed of our victory. He was directed to commence the march early next day, and to diverge from the road he was on to Bridgeport on the Big Black River, some eleven miles above the point where we expected to find the enemy. Blair was ordered to join him there with the pontoon train as early as possible.
This movement brought Sherman's corps together, and at a point where I hoped a crossing of the Big Black might be effected and Sherman's corps used to flank the enemy out of his position in our front, thus opening a crossing for the remainder of the army. I informed him that I would endeavor to hold the enemy in my front while he crossed the river.
The advance division, Carr's (McClernand's corps), resumed the pursuit at half-past three A.M. on the 17th, followed closely by Osterhaus, McPherson bringing up the rear with his corps. As I expected, the enemy was found in position on the Big Black. The point was only six miles from that where my advance had rested for the night, and was reached at an early hour. Here the river makes a turn to the west, and has washed close up to the high land; the east side is a low bottom, sometimes overflowed at very high water, but was cleared and in cultivation. A bayou runs irregularly across this low land, the bottom of which, however, is above the surface of the Big Black at ordinary stages. When the river is full water runs through it, converting the point of land into an island. The bayou was grown up with timber, which the enemy had felled into the ditch. At this time there was a foot or two of water in it. The rebels had constructed a parapet along the inner bank of this bayou by using cotton bales from the plantation close by and throwing dirt over them. The whole was thoroughly commanded from the height west of the river. At the upper end of the bayou there was a strip of uncleared land which afforded a cover for a portion of our men. Carr's division was deployed on our right, Lawler's brigade forming his extreme right and reaching through these woods to the river above. Osterhaus' division was deployed to the left of Carr and covered the enemy's entire front. McPherson was in column on the road, the head close by, ready to come in wherever he could be of assistance.