Hunter and Heintzelman, whose brigades were {55} commanded by Cols. Andrew Porter, Ambrose E. Burnside, W. B. Franklin, Orlando B. Willcox, and Oliver O. Howard, reached Sudley Ford after an unexpectedly long march, and crossed it unopposed about nine in the morning. Tyler, who had been expected to hold the Confederate Evans at Stone Bridge by a sharp attack, betrayed the incidental character of his demonstration by the feebleness of his operations; and Evans, suspecting from this an attack from some other direction, was soon rendered certain of it by the clouds of dust which he saw toward the north. Immediately, of his own motion and in the absence of orders from his superiors, he informed his neighboring commander, Cocke, of his intention, and leaving only a few companies to deceive Tyler at Stone Bridge, he turned his command to the rear and marched it to a strong position on Young's Branch, where he faced the enemy approaching from his left. This action has commended itself to military critics as the finest tactical movement of the entire battle. Evans was even momentarily successful in repulsing the troops of Burnside's brigade, which he pursued for a short distance. At the outset, General Hunter was severely wounded. Porter came to Burnside's support, and Bee and Bartow, of Johnston's army, aligned their brigades with that of Evans. There was sharp fighting for two hours; but the arrival of fresh supports for Burnside and Porter, including Sykes' regiment of regulars and the regular batteries of Griffin and Ricketts, and the extension of the Union line by Heintzelman's division beyond the Sudley Road, proved too much for the Confederates, who retreated downhill out of the Young's Branch valley before a Union charge down the Sudley Road. But they had checked the advance long enough for Johnston to order a general movement to strengthen the new line of defence which was then formed on a hill half a mile south of Young's Branch, under the direction of Jackson, who with his own brigade of Johnston's army met and rallied the retreating Confederates. It was right here that Stonewall Jackson acquired his _sobriquet_. To encourage his own men to stop and rally, Bee called out to them: "Look at Jackson's brigade! It stands there like a stone wall." And Jackson never was called by his own name again, but only "Stonewall." Tyler did send Keyes' and W. T. Sherman's brigades across Bull Run by the ford above Stone Bridge in time to join in the pursuit, Sherman pushing toward Hunter and Keyes remaining near Bull Run; but Schenck's brigade he did not send across at all. [Illustration: GENERAL JOSEPH E. JOHNSTON, C. S. A.] [Illustration: GENERAL JAMES LONGSTREET, C. S. A.]