When the interview with the Secretary was over, I proceeded with General Halleck to the White House to pay my respects to the President.  Mr. Lincoln received me very cordially, offering both his hands, and saying that he hoped I would fulfill the expectations of General Grant in the new command I was about to undertake, adding that thus far the cavalry of the Army of the Potomac had not done all it might have done, and wound up our short conversation by quoting that stale interrogation so prevalent during the early years of the war, “Who ever saw a dead cavalryman?” His manner did not impress me, however, that in asking the question he had meant anything beyond a jest, and I parted from the President convinced that he did not believe all that the query implied.

After taking leave I separated from General Halleck, and on returning to my hotel found there an order from the War Department assigning me to the command of the Cavalry Corps, Army of the Potomac.  The next morning, April 5, as I took the cars for the headquarters of the Army of the Potomac, General Grant, who had returned to Washington the previous night from a visit to his family, came aboard the train on his way to Culpeper Court House, and on the journey down I learned among other things that he had wisely determined to continue personally in the field, associating himself with General Meade’s army; where he could supervise its movements directly, and at the same time escape the annoyances which, should he remain in Washington, would surely arise from solicitude for the safety of the Capital while the campaign was in progress.  When we reached Brandy Station, I left the train and reported to General Meade, who told me that the headquarters of the Cavalry Corps were some distance back from the Station, and indicated the general locations of the different divisions of the corps, also giving me, in the short time I remained with him, much information regarding their composition.

I reached the Cavalry Corps headquarters on the evening of April 5, 1864, and the next morning issued orders assuming command.  General Pleasonton had but recently been relieved, and many of his staff-officers were still on duty at the headquarters awaiting the arrival of the permanent commander.  I resolved to retain the most of these officers on my staff, and although they were all unknown to me when I decided on this course, yet I never had reason to regret it, nor to question the selections made by my predecessor.

The corps consisted of three cavalry divisions and twelve batteries of horse artillery.  Brigadier-General A. T. A. Torbert was in command of the First Division, which was composed of three brigades; Brigadier-General D. McM.  Gregg, of the Second, consisting of two brigades; and Brigadier-General J. H. Wilson was afterward assigned to command the Third, also comprising two brigades:  Captain Robinson, a veteran soldier of the Mexican war, was chief of artillery, and as such had a general supervision of that arm, though the batteries, either as units or in sections, were assigned to the different divisions in campaign.