Before sending the boats back I wanted to get the troops as near to the enemy as I could without coming within range of their guns. There was a stream emptying into the Tennessee on the east side, apparently at about long range distance below the fort. On account of the narrow water-shed separating the Tennessee and Cumberland rivers at that point, the stream must be insignificant at ordinary stages, but when we were there, in February, it was a torrent. It would facilitate the investment of Fort Henry materially if the troops could be landed south of that stream. To test whether this could be done I boarded the gunboat Essex and requested Captain Wm. Porter commanding it, to approach the fort to draw its fire. After we had gone some distance past the mouth of the stream we drew the fire of the fort, which fell much short of us. In consequence I had made up my mind to return and bring the troops to the upper side of the creek, when the enemy opened upon us with a rifled gun that sent shot far beyond us and beyond the stream. One shot passed very near where Captain Porter and I were standing, struck the deck near the stern, penetrated and passed through the cabin and so out into the river. We immediately turned back, and the troops were debarked below the mouth of the creek.
When the landing was completed I returned with the transports to Paducah to hasten up the balance of the troops. I got back on the 5th with the advance the remainder following as rapidly as the steamers could carry them. At ten o'clock at night, on the 5th, the whole command was not yet up. Being anxious to commence operations as soon as possible before the enemy could reinforce heavily, I issued my orders for an advance at 11 A.M. on the 6th. I felt sure that all the troops would be up by that time.
Fort Henry occupies a bend in the river which gave the guns in the water battery a direct fire down the stream. The camp outside the fort was intrenched, with rifle pits and outworks two miles back on the road to Donelson and Dover. The garrison of the fort and camp was about 2,800, with strong reinforcements from Donelson halted some miles out. There were seventeen heavy guns in the fort. The river was very high, the banks being overflowed except where the bluffs come to the water's edge. A portion of the ground on which Fort Henry stood was two feet deep in water. Below, the water extended into the woods several hundred yards back from the bank on the east side. On the west bank Fort Heiman stood on high ground, completely commanding Fort Henry. The distance from Fort Henry to Donelson is but eleven miles. The two positions were so important to the enemy, AS HE SAW HIS INTEREST, that it was natural to suppose that reinforcements would come from every quarter from which they could be got. Prompt action on our part was imperative.
The plan was for the troops and gunboats to start at the same moment. The troops were to invest the garrison and the gunboats to attack the fort at close quarters. General Smith was to land a brigade of his division on the west bank during the night of the 5th and get it in rear of Heiman.
At the hour designated the troops and gunboats started. General Smith found Fort Heiman had been evacuated before his men arrived. The gunboats soon engaged the water batteries at very close quarters, but the troops which were to invest Fort Henry were delayed for want of roads, as well as by the dense forest and the high water in what would in dry weather have been unimportant beds of streams. This delay made no difference in the result. On our first appearance Tilghman had sent his entire command, with the exception of about one hundred men left to man the guns in the fort, to the outworks on the road to Dover and Donelson, so as to have them out of range of the guns of our navy; and before any attack on the 6th he had ordered them to retreat on Donelson. He stated in his subsequent report that the defence was intended solely to give his troops time to make their escape.
Tilghman was captured with his staff and ninety men, as well as the armament of the fort, the ammunition and whatever stores were there. Our cavalry pursued the retreating column towards Donelson and picked up two guns and a few stragglers; but the enemy had so much the start, that the pursuing force did not get in sight of any except the stragglers.
All the gunboats engaged were hit many times. The damage, however, beyond what could be repaired by a small expenditure of money, was slight, except to the Essex. A shell penetrated the boiler of that vessel and exploded it, killing and wounding forty-eight men, nineteen of whom were soldiers who had been detailed to act with the navy. On several occasions during the war such details were made when the complement of men with the navy was insufficient for the duty before them. After the fall of Fort Henry Captain Phelps, commanding the iron-clad Carondelet, at my request ascended the Tennessee River and thoroughly destroyed the bridge of the Memphis and Ohio Railroad.