A gentleman who was a boy in Washington during the Civil War, said not long ago, in speaking of the first Manassas, that he would never forget the impression made upon his youthful mind by McDowell’s army in moving towards Manassas Junction. Their arms glistened in the sunshine; the new uniforms added to the splendid bearing of the ranks; the horses were garlanded with flowers; the silken folds of regimental flags, lifted caressingly by the breezes of mid-summer, made an ocean of color above the noble columns. It was an inspiring sight; every flag in the capital was a beckoning call to arms in the nation’s defence. McDowell’s army seemed setting out for some festal occasion, and gayly moved to the sound of music and song. But oh, what a different sight after Manassas, when his weary and routed columns straggled back to Washington, before the victorious Confederates. Their gala day had been of short duration.

On the 16th of July the Confederates learned that the advance of McDowell’s army was under definite orders for next day. Longstreet’s brigade was at once ordered into position at Blackburn’s Ford, and all others were ordered on the alert.

At eight o’clock A.M. on the 18th McDowell’s army concentrated about Centerville, his immediate objective being Manassas Junction. His orders to General Tyler, commanding the advance division, were to look well to the roads on the direct route to Manassas Junction and via the Stone Bridge, to impress an advance upon the former, but to have care not to bring on a general engagement.

Under the instructions, as General Tyler construed them, he followed the Confederates to the heights of Centerville, overlooking the valley of Bull Run, with a squadron of cavalry and two companies of infantry. From the heights to the Run, a mile away, the field was open, and partially disclosed the Confederate position on his right. On the left the view was limited by a sparse growth of spreading pines.

The enemy was far beyond the range of Confederate guns, his position commanding as well as his metal, so Longstreet ordered the guns withdrawn to a place of safety, till a fair opportunity was offered them. The guns were limbered and off before a shot reached them. Artillery practice of thirty minutes was followed by an advance of infantry. The march was quite up to the bluff overlooking the ford, when both sides opened fire.

The first pouring-down volleys were most startling to the new troops. Part of Longstreet’s line broke and started at a run. To stop the alarm he rode with sabre in hand for the leading files, determined to give them all that was in the sword and his horse’s heels, or stop the break. They seemed to see as much danger in their rear as in front, and soon turned and marched back to their places, to the evident surprise of the enemy. Heavy firing was renewed in ten or fifteen minutes, when the Federals retired. After about twenty minutes a second advance was made to the top of the bluff, when another rousing fusilade followed, and continued about as long as the first, with like result. Longstreet reinforced the front line with part of his reserve, and, thinking to follow up his next success, called for one of the regiments of the reserve brigade.

The combat lasted about an hour, when the Federals withdrew to their ground about Centerville, to the delight of the Confederates, who felt themselves christened veterans; their artillery being particularly proud of the combat against the famed batteries of the United States regulars.

General McDowell’s order for the battle on the 21st of July was issued on the afternoon of the 20th.

Beauregard’s order for battle, approved by General Johnston, was issued at five A.M. on the 21st.

The orders for marching were only preliminary, coupled with the condition that the troops were to be held ready to move, but to wait for special order for action. The brigade at Blackburn’s Ford had been reinforced by the Fifth North Carolina and Twenty-fourth Virginia Regiments, under Lieutenant Jones and Colonel Kemper. Longstreet crossed the Run under the five o’clock order, adjusted the regiments to position for favorable action, and gave instructions for their movements on the opening of the battle.