His instructions implied that the breaking up of the Petersburg and Lynchburg, and Richmond and Danville railroads at Burkeville was the most important part of his mission, and that when the work of destruction began, it should be continued till he was driven off by the enemy. Wilson's force consisted of about 5,500 men, General A. V. Kautz, with the cavalry of the Army of the James, having joined him for the expedition. In moving out Wilson crossed the Weldon road near Ream's Station, first destroying it effectually at that point. About fourteen miles west of Petersburg he struck the Southside railroad, and broke it up clear to Burkeville, a distance of thirty miles. Having destroyed everything at Burkeville Junction, he moved along the Danville road to Staunton River, completely wrecking about thirty miles of that line also. At Staunton River he found the railroad bridge strongly guarded, and seeing that he could not burn it, he began his return march that night, and reached Nottoway River, some thirty miles south of Petersburg, at noon of the next day—the 28th.
In this expedition Wilson was closely followcd from the start by Barringer's brigade of W. H. F. Lee's cavalry, but the operations were not interfered with materially, his success being signal till he reached the vicinity of Stony Creek depot on his return. At this point General Hampton, with his own and Fitzhugh Lee's cavalry, got between Wilson and the Army of the Potomac, there being behind them at Ream's Station, at the same time, two brigades of infantry under General Mahone. A severe battle ensued, resulting in Wilson's defeat, with the loss of twelve guns and all his wagons. In consequence of this discomfiture he was obliged to fall back across the Nottoway River with his own division, and rejoined the army by way of Peter's bridge on that stream, while Kautz's division, unable to unite with Wilson after the two commands had become separated in the fight, made a circuit of the enemy's left, and reached the lines of our army in the night of the 28th.
Neither the presence of Hampton's cavalry at Stony Creek depot, nor the possession of Ream's Station by the Confederate infantry, seems to have been anticipated by Wilson, for in the report of the expedition he states:
"Foreseeing the probability of having to return northward, I wrote to General Meade the evening before starting that I anticipated no serious difficulty in executing his orders; but unless General Sheridan was required to keep Hampton's cavalry engaged, and our infantry to prevent Lee from making detachments, we should probably experience great difficulty in rejoining the army. In reply to this note, General Humphreys, chief-of-staff, informed me it was intended the Army of the Potomac should cover the Weldon road the next day, the Southside road the day after, and that Hampton having followed Sheridan toward Gordonsville, I need not fear any trouble from him."
I doubt that General Meade's letter of instructions and Wilson's note of the same evening, warrant what General Wilson here says. It is true that the Weldon railroad near Ream's Station was not covered by our infantry, as General Humphreys informed him it would be, but Wilson is in error when he intimates that he was assured that I would look after Hampton. I do not think General Meade's instructions are susceptible of this interpretation. I received no orders requiring me to detain Hampton. On the contrary, when I arrived at the White House my instructions required me to break up the depot there, and then bring the train across the Peninsula as soon as practicable, nor were these instructions ever modified. I began the duty imposed on me on the morning of the 23d, totally in the dark as to what was expected of Wilson, though it seems, from some correspondence between Generals Grant and Meade, which I never saw till after the war, that Grant thought Wilson could rely on Hampton's absence from his field of operations throughout the expedition.
"HEADQUARTERS ARMY OF THE POTOMAC,
"June 21, 1864. 9:20 A. M.
"BRIGADIER-GENERAL WILSON,
"Commanding Third Division Cavalry Corps.
"The major-general commanding directs that you move your command at 2 A. M. to-morrow, the 22d instant, in execution of the duty assigned you of destroying certain railroads. Despatches received from the White House state that Hampton's cavalry was before that place yesterday evening, and that General Sheridan had also reached there, hence it is desirable that you should march at the earliest moment. In passing Petersburg you will endeavor to avoid the observation of the enemy, and then move by the shortest routes to the intersection of the Petersburg and Lynchburg, and the Richmond and Danville railroads, and destroy both these roads to the greatest extent possible, continuing their destruction until driven from it by such attacks of the enemy as you can no longer resist. The destruction of those roads to such an extent that they cannot be used by the enemy in connection with Richmond during the remainder of the campaign is an important part of the plan of campaign. The latest information from Major-General Hunter represents him to be a few miles west of Lynchburg. He may endeavor to form a junction with this army; you will communicate with him if practicable, and have delivered to him verbally the contents of the following copy of a communication from Lieutenant-General Grant to the major-general commanding this army. Lieutenant Brooks, who will accompany your expedition part of the way, should be informed where General Hunter will probably be found.
"The success of your expedition will depend upon the secrecy with which it is commenced, and the celerity with which its movements are conducted; your command will, therefore, have with it the lightest supplies and smallest number of wheels consistent with the thorough execution of the duty, the supplies of the section of country you will operate in being taken into account. Upon the completion of the work assigned you, you will rejoin this army.
"The chief quartermaster was directed yesterday to supply you with the implements and material for the destruction of railroads obtained for General Sheridan.
"[Signed] "A. A. HUMPHREYS,
"Major-General, Chief-of-Staff."
"HEADQUARTERS CAVALRY FORCES,
Mount Sinai Church, June 21, 1864—6 P.M.
"MAJOR-GENERAL HUMPHREYS,"
"Chief-of-Staff.
"The instructions of the major-general commanding, of this date, are received. I shall march in obedience thereto at 2 A. M. to-morrow. Before starting I would like to know if our infantry forces cover the Weldon road.
"I propose striking the Southside road first at Sutherland Station, or some point in that vicinity, tearing up the track sufficiently to delay railroad communication ten or twelve hours. At this place I shall detach a force to strike the Richmond and Danville road, by a rapid march, at the nearest point, tearing up the track at every practicable point between there and Burkeville.
"From Sutherlands I shall move the main body of my command by the Great road (breaking the railroad at every convenient point) directly to Burkeville, which, if we succeed in capturing, will afford us the opportunity of prosecuting our work with great advantage. As soon as I have made dispositions for communicating with Hunter and done all the damage possible, I shall move with all possible rapidity for Danville and Grenboro'.
"Circumstances must, however, is a great degree control our movements after leaving Burkeville.
"If Sheridan will look after Hampton, I apprehend no difficulty, and hope to be able to do the enemy great damage. The ammunition issued to my command is very defective. The implements for destroying roads have not yet arrived, but I learn from General Ingalls that they will certainly be here early to-morrow.
"[Signed] J. H. WILSON,
"Brigadier-General Commanding."
The moment I received orders from General Meade to go to the relief of Wilson, I hastened with Torbert and Gregg by way of Prince George Court House and Lee's Mills to Ream's Station. Here I found the Sixth Corps, which Meade had pushed out on his left flank immediately on hearing of Wilson's mishap, but I was too late to render any material assistance, Wilson having already disappeared, followed by the enemy. However, I at once sent out parties to gather information, and soon learned that Wilson had got safe across the Nottoway at Peter's bridge and was making for the army by way of Blunt's bridge, on the Blackwater.