The morning of the 26th (Thursday) was fixed by Lee for this concerted movement against McClellan's right wing. But Jackson did not reach Ashland until the night of the 25th, his march having been delayed by obstructions put in his way by the Federal outposts, many bridges being burned over streams crossing his march. It was after sunrise on the 26th before Jackson left Ashland. He marched past the right flank of the Federal position, at Beaver Dam, and went into camp 3 miles in the rear of that flank, at Hundley's corner, in the evening. In consequence, the bloody battle fought on the 26th, along Beaver Dam, by the gallant division of A. P. Hill and Ripley's brigade of D. H. Hill's division, was fought without Jackson's assistance. The Federal position behind Beaver Dam was heroically assailed; but it was too strong to be carried by Hill and Ripley, who suffered heavy losses. With Ripley was Capt. A. Burnet Rhett's South Carolina battery, who built a bridge, crossed the creek and, pushing up close to the enemy, were in action until 10 o'clock at night, losing 11 wounded. They were particularly complimented by A. P. Hill. With A. P. Hill were the South Carolina batteries of Capts. W. K. Bachman and D. G. McIntosh, the latter of which (Pee Dee artillery) probably fired the first gun at Mechanicsville, and fired 160 rounds from each gun before night stopped the fight. The brigade of General Gregg did not become actively engaged on the 26th.
The position of Jackson, on the right and rear, and the divisions of D. H. Hill and Longstreet in front, all fresh and ready for attack in the early morning of the 27th, made the position of General Porter behind Beaver Dam untenable, and he promptly retreated and took up a strong position 3 miles further down the river.
On Friday morning (27th), A. P. Hill was ordered forward