On the 27th Colonel Kelley was sent by rail from Wheeling to drive off the enemy, who withdrew at his approach, and the bridges were quickly rebuilt. [Footnote: _Id_., pp. 46, 49, 655.] Several of the Ohio regiments were ordered across the river at the same time, and an Indiana brigade under General Thomas A. Morris of that State was hurried forward from Indianapolis. As the Ohio troops at Camp Dennison which had been mustered into national service were in process of reorganizing for the three years' term, McClellan preferred not to move them till this was completed. He also adhered to his plan of making his own principal movement in the Great Kanawha valley, and desired to use there the Ohio division at our camp. [Footnote: _Id_., pp. 50, 656, 674.] The Ohio regiments first sent into West Virginia were not mustered in, and were known as State troops. General Morris reached Grafton on the 1st of June, and was intrusted with the command of all the troops in West Virginia. He found that Colonel Kelley had already planned an expedition against the enemy, who had retired southward to Philippi, about fifteen miles in a straight line, but some twenty-five by the crooked country roads. [Footnote: Official Records, vol. ii. p. 66.] Morris approved the plan, but enlarged it by sending another column, under Colonel E. Dumont of the Seventh Indiana, to co-operate with Kelley. Both columns were directed to make a night march, starting from points on the railroad about twelve miles apart and converging on Philippi, which they were to attack at daybreak on June 3d. Each column consisted of about fifteen hundred men, and Dumont had also two smooth six-pounder cannon. The Confederate force was commanded by Colonel G. A. Porterfield, and was something less than a thousand strong, one-fourth cavalry. [Footnote: _Id_., pp. 70, 72.]