assigned to the right wing under Burnside, and the other to the left under Sumner. CHAPTER XIII SOUTH MOUNTAIN March through Washington--Reporting to Burnside--The Ninth Corps--Burnside's personal qualities--To Leesboro--Straggling--Lee's army at Frederick--Our deliberate advance--Reno at New Market--The march past--Reno and Hayes--Camp gossip--Occupation of Frederick--Affair with Hampton's cavalry--Crossing Catoctin Mountain--The valley and South Mountain--Lee's order found--Division of his army--Jackson at Harper's Ferry--Supporting Pleasonton's reconnoissance--Meeting Colonel Moor--An involuntary warning--Kanawha Division's advance--Opening of the battle--Carrying the mountain crest--The morning fight--Lull at noon--Arrival of supports--Battle renewed--Final success--Death of Reno--Hooker's battle on the right--His report--Burnside's comments--Franklin's engagement at Crampton's Gap. Late in the night of the 5th I received orders from McClellan's headquarters to march from my position on Upton's Hill through Washington toward Leesboro, [Footnote: Leesboro, a village of Maryland eight or ten miles north of Washington, must be distinguished from Leesburg in Virginia.] as soon as my pickets could be relieved by troops of McDowell's corps. [Footnote: Official Records, vol. xix. pt. ii. p. 183; vol. li. pt. i. p. 789.] My route was designated as by the road which was a continuation northward of Seventh Street, and I was directed to report to General Ambrose E. Burnside, commanding right wing, whose headquarters were in the suburbs of the city on that road. This was in accordance with my wish, expressed to McClellan that I might have active field work. For two or three days we were not attached to a corps, but as the organization of the army became settled we were temporarily assigned to the Ninth, which had been Burnside's, and had been with him in North Carolina. During this campaign it was commanded by Major-General Jesse L. Reno, who had long had a division in it, and had led the corps in the recent battle. We marched from Upton's Hill at daybreak of the 6th, taking the road to Georgetown by Ball's Cross-Roads. In Georgetown we turned eastward through Washington to Seventh Street, and thence northward to the Leesboro road. As we passed General Burnside's quarters, I sent a staff officer to report our progress. It was about ten o'clock, and Burnside had gone to the White House to meet the President and cabinet by invitation. His chief of staff, General J. G. Parke, sent a polite note, saying we had not been expected so soon, and directed us to halt and bivouac for the present in some fields by the roadside, near where the Howard University now is. In the afternoon I met Burnside for the first time, and was warmly attracted by him, as everybody was. He was pre-eminently a manly man, as I expressed it in writing home. His large, fine eyes, his winning smile and cordial manners, bespoke