Jefferson Davis, The Rise and Fall of the Confederate Government

Colonel Vaughn, the commander of the detachment, was new to war. His paths had been those of peace, and his home in the mountains of East Tennessee might reasonably have secured him from any expectation that it would ever be the theatre on which armies were to contend, and that he, in the mutation of human affairs, would become a soldier. He lived until the close of the war, and, on larger fields than that on which he first appeared, proved that, though not educated for a soldier, he had endowments which compensated for that disadvantage.

The activity and vigilance of Stuart, afterward so distinguished as commander of cavalry in the army of Virginia, and the skill and daring of Jackson, soon by greater deeds to become immortal, checked, punished, and embarrassed the enemy in his threatened advances, and his movements became so devoid of a definite purpose that one was at a loss to divine the object of his campaign, unless it was to detain General Johnston with his forces in the valley of the Shenandoah, while General McDowell, profiting by the feint, should make the real attack upon General Beauregard's army at Manassas. However that may be, the evidence finally became conclusive that the enemy under General McDowell was moving to attack the army under General Beauregard. The contingency had therefore arisen for that junction which was necessary to enable us to resist the vastly superior numbers of our assailant; for, though the most strenuous and not wholly unsuccessful exertion had been made to reenforce both the armies of the Shenandoah and of the Potomac, they yet remained far smaller than those of the enemy confronting them, and made a junction of our forces indispensable whenever the real point of attack should be ascertained. For this movement we had the advantage of an interior line, so that, if the enemy should discover it after it commenced, he could not counteract it by adopting the same tactics. The success of this policy, it will readily be perceived, depended upon the time of execution, for though from different causes, failure would equally result if done too soon or too late. The determination as to which army should be reenforced from the other, and the exact time of the transfer, must have been a difficult problem, as both the generals appear to have been unable to solve it (each asking reenforcements from the other).

On July 9th General Johnston wrote an official letter, from which I make the following extracts: