Four days later, Lieutenant-Commander Le Roy Fitch, in active charge of the two rivers, was going up the Cumberland with a fleet of transports, convoyed by the Lexington and five light-draughts. When twenty-four miles below Dover, the town on the west bank near which Fort Donelson was situated, he met a steamer bearing a message from Colonel Harding, commanding the post, to the effect that his pickets had been driven in and that he was attacked in force. Fitch at once left the convoy and pushed ahead as fast as he could. A short distance below the town he met a second steamer with the news that Harding was surrounded. At 8 P.M. he arrived, and found the Union forces not only surrounded by overwhelming forces but out of ammunition.
The enemy, not thinking about gunboats, had posted the main body of his troops in a graveyard at the west end of the town, the left wing resting in a ravine that led down to the river, thus enabling the vessels to rake that portion of his line. The gunboats opened fire simultaneously up the ravine, into the graveyard and upon the valley beyond. Taken wholly by surprise, the Confederates did not return a shot, but decamped in haste. Leaving two boats to maintain the fire through the ravine, Fitch hastened up with the other four to shell the main road, which, after leaving the upper end of the town, follows nearly the bank of the stream for some distance. The attacking force in this case was 4,500 strong, composed of regular Confederate troops under Generals Wheeler, Forrest, and Wharton. By 11 P.M. they had disappeared, leaving 140 dead. The garrison, which numbered only 800, had defended itself gallantly against this overwhelming force since noon, but was in extremis when the gunboats arrived.
On the 27th of March, Fitch was at Fort Hindman, on the Tennessee, where he took on board a force of 150 soldiers and went up the river. On reaching Savanna he heard of a cotton-mill four miles back being run for the Confederate army. The troops and a force of sailors were landed and took the mill, although a regiment of the enemy's cavalry was but two or three miles away. Finding no sure proof of its working for the army, they did not destroy the building, but removed some of the essential parts of the machinery. Going on to Chickasaw, south of the Tennessee line, as the water was too low for the Lexington, he sent on two light-draughts as far as Florence, where they shelled a camp of the enemy. The rapid falling of the river obliged them to return. On the way a quantity of food and live stock belonging to a noted abettor of guerilla warfare were seized.
Having returned to the mouth of the Cumberland to coal, Fitch received a telegram on the 3d of April that a convoy had been attacked at Palmyra, thirty miles above Dover, and the gunboat St. Clair disabled. He at once got under way, took five light-draughts besides his own vessel, the Lexington, and went up the river. When he reached Palmyra he burned every house in the town, as a punishment for the firing on unarmed vessels and harboring guerillas. A quick movement followed against a body of the enemy higher up the stream, but they had notice of his approach, and had disappeared.
On the 24th a steamer was fired upon in the Tennessee, and three men badly wounded. Fitch went at once to the scene, but the enemy were off. On the 26th, cruising up the river, he found the vessels of General Ellet, commanding what was now called the Marine Brigade, fighting a battery and body of infantry 700 strong. Fitch joined in, and the enemy were of course repulsed. The Marine Brigade landed and pursued the enemy some distance, finding their commander mortally wounded.
On the 26th of May Lieutenant-Commander Phelps, with the Covington and two other gunboats, was at Hamburg, on the Tennessee, a few miles from the Mississippi State line. Here he ferried across 1,500 cavalry and four light field-pieces from Corinth, in Mississippi, under Colonel Cornyn. This little body made a forced march upon Florence, forty miles distant, in rear of the left of the Confederate army at Columbia, captured the place and destroyed a large amount of property, including three cotton-mills. An attempt was made by the enemy to cut this force off on its return to the boats, but without success.
Early in July a very daring raid was made by General J.H. Morgan of the Confederate army into the States of Kentucky, Indiana, and Ohio. Crossing the Ohio River at Brandenburg, he moved in an easterly direction through the southern part of Indiana and Ohio, burning bridges, tearing up railroads, destroying public property, capturing small bodies of troops, and causing general consternation. Fitch heard of him, and at once started up the river with his lightest vessels to cut off the retreat of the raiders. Leaving some boats to patrol the river below, he himself, in the Moose, came up with them on the 19th, at a ford a mile and a half above Buffington Island, and two hundred and fifty miles east of Cincinnati. The retreating enemy had placed two field-pieces in position, but the Moose's battery of 24-pound howitzers drove them off with shell and shrapnel. The troops in pursuit had come up, so the Confederates, finding their retreat stopped, broke and ran up the stream in headlong flight, leaving their wounded and dismounted men behind. The Moose followed, keeping always on their right flank, and stopping two other efforts made to cross. Only when the water became too shoal for even his little paddle steamer of one hundred and sixty tons to go on, did Fitch stop the chase, which had led him five hundred miles from his usual station. His efforts and their useful results were cordially acknowledged by Generals Burnside and Cox, at Cincinnati.
During the siege of Port Hudson the enemy on the west bank of the Mississippi made several demonstrations against Donaldsonville and Plaquemine, with a view to disturbing General Banks's communications; threatening also New Orleans, which was not well prepared for defence. Farragut stationed the Princess Royal, Commander Woolsey, at Donaldsonville; the Winona, Lieutenant-Commander Weaver, above at Plaquemine, and the Kineo, Lieutenant-Commander Watters, some distance below. The Confederates attacked the fort at Donaldsonville in force at midnight of June 27th. The Princess Royal kept under way above the fort, engaging the assailants, the Winona arriving at 4 A.M. and joining with her. The Kineo also came up from below, but not in time to take part. The storming party of the enemy succeeded in getting into the fort, but the supports broke and fled under the fire of the gunboats, leaving the advance, numbering 120, prisoners in the hands of the garrison. On the 7th of July, as the Monongahela was coming up the river, some field batteries of the enemy attacked her, and her commander, Abner Read, an officer of distinguished activity and courage, was mortally wounded. Her other loss was 1 killed and 4 wounded; among the latter being Captain Thornton A. Jenkins, on his way to assume command of the Richmond and of the naval forces off Port Hudson.