and accordingly notified Sherman that I should again make an assault on Vicksburg at daylight on the 6th, and for him to have up supplies of all descriptions, ready to move upon receipt of orders, if the assault should prove a success. His preparations were immediately made, and when the place surrendered on the 4th-two days earlier than I had fixed for the attack-Sherman was found ready, and moved at once with a force increased by the remainder of both the Thirteenth and Fifteenth Army Corps, and is at present investing Jackson, where Johnston had made a stand.
In the march from Bruinsburg to Vicksburg, covering a period of twenty days, before supplies could be obtained from Government stores, only five days' rations were issued, and three days' of these were taken in haversacks at the start, and were soon exhausted. All other subsistence was obtained from the country through which we passed. The march was commenced without wagons, except such as could be picked up through the country. The country was abundantly supplied with corn, bacon, beef, and mutton. The troops enjoyed excellent health, and no army ever appeared in better spirits of felt more confident of success.
In accordance with previous instructions, Major General S. A. Hurlbut started Colonel (now Brigadier General) B. H. Grierson with a cavalry force from LA Grange, Tenn., to make a raid through the central portion of the State of Mississippi, to destroy railroads and other public property, for the purpose of creating a diversion in favor of the army moving to the attack on Vicksburg.
On April 17, this expedition started, and arrived at Baton Rouge on May 2, having successfully traversed the whole State of Mississippi. This expedition was skillfully conducted, and reflects great credit on Colonel Grierson and all of his command. The notice given this raid by the Southern press confirms our estimate of its importance. It has been one of the most brilliant cavalry exploits of the war, and will be handed down in history as an example to be imitated. Colonel Grierson's report is herewith transmitted. *
I cannot close this report without an expression of thankfulness for my good fortune in being placed in co-operation with an officer of the Navy who accords to every move that seems for the interest and success of our arms his hearty and energetic support. Admiral Porter and the very efficient officers under him have ever shown the greatest readiness in their co-operation, no matter what was to be done or what risk to be taken, either by their men or their vessels. Without this prompt and cordial support, my movements would have been much embarrassed, if not wholly defeated.
Captain J. W. Shirk, commanding the Tuscumbia, was especially active, and deserving of the highest commendation for his personal attention to the repairing of the damage done our transports by the Vicksburg batteries.
The result of this campaign has been the defeat of the enemy in five battles outside of Vicksburg; the occupation of Jackson, the capital of the State of Mississippi, and the capture of Vicksburg and its garrison and munitions of war; a loss to the enemy of 37,000 prisoners, among whom were 15 general officers; at least 10,000 killed and wounded, and among the killed Generals Tracy, Tilghman, and Green, and hundreds and perhaps thousands of stragglers, who can never be collected and reorganized. Arms and munitions of war for an army of 60,000 men have fallen into our hands, besides a large amount of other public property,
*See p. 521.