When A. P. Hill’s division joined General Jackson at Gordonsville, General Pope’s army was posted,—the First Corps (Sigel’s) at Sperryville, the Second (Banks’s) at Culpeper Court-House, the Third (McDowell’s), one division near Culpeper Court-House, and one at Fredericksburg—these two under Ricketts and King respectively; his cavalry under Buford, Bayard, and Hatch along the Rapidan from the Blue Ridge to Fredericksburg.
The point held by his left was thought essential by the Washington authorities as holding the way for reinforcements from McClellan’s army on the James to join in the contemplated march by General Pope’s route to Richmond.
On the 2d of August, Jackson sent part of his cavalry forward as far as Orange Court-House, under Colonel W. E. Jones, who encountered at that point a formidable cavalry guard of the enemy, when a spirited affair occurred, creditable alike to both sides. This was followed up, on the 8th, by the advance of Jackson’s entire force, his own division under Winder leading, Ewell’s and A. P. Hill’s following.
General Pope’s outpost at Cedar Run, held by cavalry and Crawford’s brigade of infantry, had meantime been reinforced by the balance of the Second Corps under Banks, and Ricketts’s division put in supporting position of the advance post.
On the 9th, Jackson advanced and found the enemy in strong position at Cedar Run. His division under Ewell was posted on the northeast slope of Slaughter Mountain, his own division under Winder formed to the left. The engagement was pitched and soon became severe. While yet posting his troops, Winder was mortally struck by a fragment of shell. Banks, gaining confidence in his battle, moved forward to closer and severe fight and held it an hour, at points putting Jackson’s troops in disorder. Jackson, reinforced by A. P. Hill’s brigades, recovered his lost ground, advanced and renewed attack, drove the enemy back, engaged against reinforcements of Ricketts’s division, continued the fight till near midnight, then reorganized for battle away from the immediate front of the enemy, where he awaited next day. During the evening of the 9th, Pope received his First Corps under Sigel and called up McDowell’s division, under King, from Fredericksburg. On the 10th both armies remained quiet. On the 11th a flag of truce was sent in asking for time to bury the dead, which Jackson granted, and extended to a late hour of the day. King’s division coming up, Pope decided to engage again on the 12th, but Jackson, having information of the extent of reinforcements, decided to withdraw during the night.
The loss was severe on both sides,—Jackson’s, 1276, including his most promising brigadier, Winder; Pope’s, 2381, including three brigadiers, two wounded and one taken prisoner.
After drawing King’s division to his field, General Pope had about thirty-six thousand present for service. Jackson’s reports as to these forces were such that he accepted the advice of prudence and retired to stronger ground on the right bank of the Rapidan.
In the battle of the 9th the troops engaged were, according to official return of July 31,[42]—
| Second Corps (Banks’s), artillery and infantry | 14,567 | |
| Ricketts’s division, half of Third Corps, artillery and infantry | 9,287 | |
| Total | 23,854 |
The absence of Lawton’s brigade and one from Jackson’s division reduced his force to something less than eighteen thousand. The troops engaged in battle, however, were not far from equal, Jackson probably the stronger.