On the 4th General McClernand issued his General Order No. 1, assuming command of the Army of the Mississippi, divided into two corps; the first to be commanded by General Morgan, composed of his own and A. J. Smith's divisions; and the second, composed of Steele's and Stuart's divisions, to be commanded by me. Up to that time the army had been styled the right wing of (General Grant's) Thirteenth Army Corps, and numbered about thirty thousand men. The aggregate loss during the time of any command, mostly on the 29th of December, was one hundred and seventy-five killed, nine hundred and thirty wounded, and seven hundred and forty-three prisoners. According to Badeau, the rebels lost sixty-three killed, one hundred and thirty-four wounded, and ten prisoners. It afterward transpired that Van Dorn had captured Holly Springs on the 20th of December, and that General Grant fell back very soon after. General Pemberton, who had telegraphic and railroad communication with Vicksburg, was therefore at perfect liberty to reenforce the place with a garrison equal, if not superior, to my command. The rebels held high, commanding ground, and could see every movement of our men and boats, so that the only possible hope of success consisted in celerity and surprise, and in General Grant's holding all of Pemberton's army hard pressed meantime. General Grant was perfectly aware of this, and had sent me word of the change, but it did not reach me in time; indeed, I was not aware of it until after my assault of December 29th, and until the news was brought me by General McClernand as related. General McClernand was appointed to this command by President Lincoln in person, who had no knowledge of what was then going on down the river. Still, my relief, on the heels of a failure, raised the usual cry, at the North, of "repulse, failure, and bungling." There was no bungling on my part, for I never worked harder or with more intensity of purpose in my life; and General Grant, long after, in his report of the operations of the siege of Vicksburg, gave us all full credit for the skill of the movement, and described the almost impregnable nature of the ground; and, although in all official reports I assumed the whole responsibility, I have ever felt that had General Morgan promptly and skillfully sustained the lead of Frank Blair's brigade on that day, we should have broken the rebel line, and effected a lodgment on the hills behind Vicksburg. General Frank Blair was outspoken and indignant against Generals Morgan and De Courcey at the time, and always abused me for assuming the whole blame. But, had we succeeded, we might have found ourselves in a worse trap, when General Pemberton was at full liberty to turn his whole force against us. While I was engaged at Chickasaw Bayou, Admiral Porter was equally busy in the Yazoo River, threatening the enemy's batteries at Haines's and Snyder's Bluffs above. In a sharp engagement he lost one of his best officers, in the person of Captain Gwin, United States Navy, who, though on board an ironclad, insisted on keeping his post on deck, where he was struck in the breast by a round shot, which carried away the muscle, and contused the lung within, from which he died a few days after. We of the army deplored his loss quite as much as his fellows of the navy, for he had been intimately associated with us in our previous operations on the Tennessee River, at Shiloh and above, and we had come to regard him as one of us.

On the 4th of January, 1863, our fleet of transports was collected at Milliken's Bend, about ten miles above the mouth of the Yazoo, Admiral Porter remaining with his gunboats at the Yazoo. General John A. McClernand was in chief command, General George W. Morgan commanded the First Corps and I the Second Corps of the Army of the Mississippi.

I had learned that a small steamboat, the Blue Wing, with a mail, towing coal-barges and loaded with ammunition, had left Memphis for the Yazoo, about the 20th of December, had been captured by a rebel boat which had come out of the Arkansas River, and had been carried up that river to Fort Hind.

We had reports from this fort, usually called the "Post of Arkansas," about forty miles above the mouth, that it was held by about five thousand rebels, was an inclosed work, commanding the passage of the river, but supposed to be easy of capture from the rear. At that time I don't think General McClernand had any definite views or plays of action. If so, he did not impart them to me. He spoke, in general terms of opening the navigation of the Mississippi, "cutting his way to the sea," etc., etc., but the modus operandi was not so clear. Knowing full well that we could not carry on operations against Vicksburg as long as the rebels held the Post of Arkansas, whence to attack our boats coming and going without convoy, I visited him on his boat, the Tigress, took with me a boy who had been on the Blue Wing, and had escaped, and asked leave to go up the Arkansas, to clear out the Post. He made various objections, but consented to go with me to see Admiral Porter about it. We got up steam in the Forest Queen, during the night of January 4th, stopped at the Tigress, took General McClernand on board, and proceeded down the river by night to the admiral's boat, the Black Hawk, lying in the mouth of the Yazoo. It must have been near midnight, and Admiral Porter was in deshabille. We were seated in his cabin and I explained my views about Arkansas Post, and asked his cooperation. He said that he was short of coal, and could not use wood in his iron-clad boats. Of these I asked for two, to be commanded by Captain Shirk or Phelps, or some officer of my acquaintance. At that moment, poor Gwin lay on his bed, in a state-room close by, dying from the effect of the cannon shot received at Haines's Bluff, as before described. Porter's manner to McClernand was so curt that I invited him out into a forward-cabin where he had his charts, and asked him what he meant by it. He said that "he did not like him;" that in Washington, before coming West, he had been introduced to him by President Lincoln, and he had taken a strong prejudice against him. I begged him, for the sake of harmony, to waive that, which he promised to do. Returning to the cabin, the conversation was resumed, and, on our offering to tow his gunboats up the river to save coal, and on renewing the request for Shirk to command the detachment, Porter said, "Suppose I go along myself?" I answered, if he would do so, it would insure the success of the enterprise. At that time I supposed General McClernand would send me on this business, but he concluded to go himself, and to take his whole force. Orders were at once issued for the troops not to disembark at Milliken's Bend, but to remain as they were on board the transports. My two divisions were commanded--the First, by Brigadier-General Frederick Steele, with three brigades, commanded by Brigadier-Generals F. P. Blair, C. E. Hooey, and J. M. Thayer; the Second, by Brigadier-General D. Stuart, with two brigades, commanded by Colonels G. A. Smith and T. Kilby Smith.

The whole army, embarked on steamboats convoyed by the gunboats, of which three were iron-clads, proceeded up the Mississippi River to the mouth of White River, which we reached January 8th. On the next day we continued up White River to the "Cut-off;" through this to the Arkansas, and up the Arkansas to Notrib's farm, just below Fort Hindman. Early the next morning we disembarked. Stuart's division, moving up the river along the bank, soon encountered a force of the enemy intrenched behind a line of earthworks, extending from the river across to the swamp. I took Steele's division, marching by the flank by a road through the swamp to the firm ground behind, and was moving up to get to the rear of Fort Hindman, when General McClernand overtook me, with the report that the rebels had abandoned their first position, and had fallen back into the fort. By his orders, we counter-marched, recrossed the swamp, and hurried forward to overtake Stuart, marching for Fort Hindman. The first line of the rebels was about four miles below Fort Hindman, and the intervening space was densely, wooded and obscure, with the exception of some old fields back of and close to the fort. During the night, which was a bright moonlight one, we reconnoitred close up, and found a large number of huts which had been abandoned, and the whole rebel force had fallen back into and about the fort. Personally I crept up to a stump so close that I could hear the enemy hard at work, pulling down houses, cutting with axes, and building intrenchments. I could almost hear their words, and I was thus listening when, about 4 A. M. the bugler in the rebel camp sounded as pretty a reveille as I ever listened to.

When daylight broke it revealed to us a new line of parapet straight across the peninsula, connecting Fort Hindman, on the Arkansas River bank, with the impassable swamp about a mile to its left or rear. This peninsula was divided into two nearly equal parts by a road. My command had the ground to the right of the road, and Morgan's corps that to the left. McClernand had his quarters still on the Tigress, back at Notrib's farm, but moved forward that morning (January 11th) to a place in the woods to our rear, where he had a man up a tree, to observe and report the movements.

There was a general understanding with Admiral Porter that he was to attack the fort with his three ironclad gunboats directly by its water-front, while we assaulted by land in the rear. About 10 a.m. I got a message from General McClernand, telling me where he could be found, and asking me what we were waiting for. I answered that we were then in close contact with the enemy, viz., about five or six hundred yards off; that the next movement must be a direct assault; that this should be simultaneous along the whole line; and that I was waiting to hear from the gunboats; asking him to notify Admiral Porter that we were all ready. In about half an hour I heard the clear ring of the navy-guns; the fire gradually increasing in rapidity and advancing toward the fort. I had distributed our field-guns, and, when I judged the time had come, I gave the orders to begin. The intervening ground between us and the enemy was a dead level, with the exception of one or two small gullies, and our men had no cover but the few standing trees and some logs on the ground. The troops advanced well under a heavy fire, once or twice falling to the ground for a sort of rest or pause. Every tree had its group of men, and behind each log was a crowd of sharp-shooters, who kept up so hot a fire that the rebel troops fired wild. The fire of the fort proper was kept busy by the gunboats and Morgan's corps, so that all my corps had to encounter was the direct fire from the newly-built parapet across the peninsula. This line had three sections of field-guns, that kept things pretty lively, and several round-shot came so near me that I realized that they were aimed at my staff; so I dismounted, and made them scatter.

As the gunboats got closer up I saw their flags actually over the parapet of Fort Hindman, and the rebel gunners scamper out of the embrasures and run down into the ditch behind. About the same time a man jumped up on the rebel parapet just where the road entered, waving a large white flag, and numerous smaller white rags appeared above the parapet along the whole line. I immediately ordered, "Cease firing!" and sent the same word down the line to General Steele, who had made similar progress on the right, following the border of he swamp. I ordered my aide, Colonel Dayton, to jump on his horse and ride straight up to the large white flag, and when his horse was on the parapet I followed with the rest of my staff. All firing had ceased, except an occasional shot away to the right, and one of the captains (Smith) of the Thirteenth Regulars was wounded after the display of the white flag. On entering the line, I saw that our muskets and guns had done good execution; for there was a horse-battery, and every horse lay dead in the traces. The fresh-made parapet had been knocked down in many places, and dead men lay around very thick. I inquired who commanded at that point, and a Colonel Garland stepped up and said that he commanded that brigade. I ordered him to form his brigade, stack arms, hang the belts on the muskets, and stand waiting for orders. Stuart's division had been halted outside the parapet. I then sent Major Hammond down the rebel line to the right, with orders to stop Steele's division outside, and to have the other rebel brigade stack its arms in like manner, and to await further orders. I inquired of Colonel Garland who commanded in chief, and he said that General Churchill did, and that he was inside the fort. I then rode into the fort, which was well built, with good parapets, drawbridge, and ditch, and was an inclosed work of four bastions. I found it full of soldiers and sailors, its parapets toward the river well battered in, and Porter's gunboats in the river, close against the fort, with their bows on shore. I soon found General Churchill, in conversation with Admiral Porter and General A. J. Smith, and about this time my adjutant-general, Major J. H. Hammond, came and reported that General Deshler, who commanded the rebel brigade facing and opposed to Steele, had refused to stack arms and surrender, on the ground that he had received no orders from his commanding general; that nothing separated this brigade from Steele's men except the light parapet, and that there might be trouble there at any moment. I advised General Churchill to send orders at once, because a single shot might bring the whole of Steele's division on Deshler's brigade, and I would not be responsible for the consequences; soon afterward, we both concluded to go in person. General Churchill had the horses of himself and staff in the ditch; they were brought in, and we rode together to where Garland was standing, and Churchill spoke to him in an angry tone, "Why did you display the white flag!" Garland replied, "I received orders to do so from one of your staff." Churchill denied giving such an order, and angry words passed between them. I stopped them, saying that it made little difference then, as they were in our power. We continued to ride down the line to its extreme point, where we found Deshler in person, and his troops were still standing to the parapet with their muskets in hand. Steele'e men were on the outside. I asked Deshler: "What does this mean? You are a regular officer, and ought to know better." He answered, snappishly, that "he had received no orders to surrender;" when General Churchill said: "You see, sir, that we are in their power, and you may surrender." Deshler turned to his staff-officers and ordered them to repeat the command to "stack arms," etc., to the colonels of his brigade. I was on my horse, and he was on foot. Wishing to soften the blow of defeat, I spoke to him kindly, saying that I knew a family of Deshlers in Columbus, Ohio, and inquired if they were relations of his. He disclaimed any relation with people living north of the Ohio, in an offensive tone, and I think I gave him a piece of my mind that he did not relish. He was a West Point graduate, small but very handsome, and was afterward killed in battle. I never met him again.

Returning to the position where I had first entered the rebel line, I received orders from General McClernand, by one of his staff, to leave General A. J. Smith in charge of the fort and prisoners, and with my troops to remain outside. The officer explained that the general was then on the Tigress, which had moved up from below, to a point in the river just above the fort; and not understanding his orders, I concluded to go and see him in person. My troops were then in possession of two of the three brigades which composed the army opposed to us; and my troops were also in possession of all the ground of the peninsula outside the "fort-proper" (Hindman). I found General McClernand on the Tigress, in high spirits. He said repeatedly: "Glorious! glorious! my star is ever in the ascendant!" He spoke complimentarily of the troops, but was extremely jealous of the navy. He said: "I'll make a splendid report;" "I had a man up a tree;" etc. I was very hungry and tired, and fear I did not appreciate the honors in reserve for us, and asked for something to eat and drink. He very kindly ordered something to be brought, and explained to me that by his "orders" he did not wish to interfere with the actual state of facts; that General A. J. Smith would occupy "Fort Hindman," which his troops had first entered, and I could hold the lines outside, and go on securing the prisoners and stores as I had begun. I returned to the position of Garland's brigade and gave the necessary orders for marching all the prisoners, disarmed, to a pocket formed by the river and two deep gullies just above the fort, by which time it had become quite dark. After dark another rebel regiment arrived from Pine Bluff, marched right in, and was also made prisoners. There seemed to be a good deal of feeling among the rebel officers against Garland, who asked leave to stay with me that night, to which I of course consented. Just outside the rebel parapet was a house which had been used for a hospital. I had a room cleaned out, and occupied it that night. A cavalry-soldier lent me his battered coffee-pot with some coffee and scraps of hard bread out of his nose-bag; Garland and I made some coffee, ate our bread together, and talked politics by the fire till quite late at night, when we lay down on straw that was saturated with the blood of dead or wounded men. The next day the prisoners were all collected on their boats, lists were made out, and orders given for their transportation to St. Louis, in charge of my aide, Major Sanger. We then proceeded to dismantle and level the forts, destroy or remove the stores, and we found in the magazine the very ammunition which had been sent for us in the Blue Wing, which was secured and afterward used in our twenty-pound Parrott guns.

On the 13th we reembarked; the whole expedition returned out of the river by the direct route down the Arkansas during a heavy snow-storm, and rendezvoused in the Mississippi, at Napoleon, at the mouth of the Arkansas. Here General McClernand told me he had received a letter from General Grant at Memphis, who disapproved of our movement up the Arkansas; but that communication was made before he had learned of our complete success. When informed of this, and of the promptness with which it had been executed, he could not but approve. We were then ordered back to Milliken's Bend, to await General Grant's arrival in person. We reached Milliken's Bend January 21st.

McClernand's report of the capture of Fort Hindman almost ignored the action of Porter's fleet altogether. This was unfair, for I know that the admiral led his fleet in person in the river-attack, and that his guns silenced those of Fort Hindman, and drove the gunners into the ditch.

The aggregate loss in my corps at Arkansas Post was five hundred and nineteen, viz., four officers and seventy-five men killed, thirty-four officers and four hundred and six men wounded. I never knew the losses in the gunboat fleet, or in Morgan's corps; but they must have been less than in mine, which was more exposed. The number of rebel dead must have been nearly one hundred and fifty; of prisoners, by actual count, we secured four thousand seven hundred and ninety-one, and sent them north to St. Louis.