...on of the Confederate forces sent Colonel J. E. Rains to cover the evacuation of Cumberland Gap, which had been commenced on the afternoon of that day; Rains withdrew in the night and marched toward Morristown . Unaware of that fact, at 1 o'clock on the morning of June 18th we advanced in two parallel columns, of two brigades each, to attack the enemy; but while the troops were at breakfast I learned from...