Both sides now redoubled their efforts; for Donelson was a great prize and the forces engaged were second only to those at Bull Run. Afloat and ashore, all ranks and ratings on both sides together, there were fifty thousand men present at the investment from first to last. The Confederates began with about twenty thousand, Grant with fifteen thousand. But Grant had twenty-seven thousand fit for duty at the end, in spite of all his losses. He was fortunate in his chief staff officer, the devoted and capable John A. Rawlins, afterwards a general and Secretary of War. Two of his divisional commanders, Lew Wallace and, still more, C. F. Smith, the old Commandant of Cadets, were also first-rate. But the third, McClernand, here began to follow those distorting ideas which led to his dismissal later on. The three chief Confederates ranked in reverse order of efficiency: Floyd first and worst, cantankerous Pillow next, and Buckner best though last. The Federal prospect was anything but bright on the evening of the fourteenth. Foote had just been repulsed; while McClernand had fought a silly little battle on his own account the day before, to the delight of the Confederates and the grievous annoyance of Grant. The fifteenth dawned on a scene of midwinter discomfort in the Federal lines, where most of the rawest men had neither great-coats nor blankets, having thrown them away during the short march from Fort Henry, regardless of the fact that they would have to bivouac at Donelson. Thus it was in no happy frame of mind that Grant slithered across the frozen mud to see what Foote proposed; and, when Foote explained that the gunboats would take ten days for indispensable repairs, Grant resigned himself to the very unwelcome idea of going through the long-drawn horrors of a regular winter siege.