The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 1: The Opening Battles.
Francis Trevelyan Miller, Ed.

He declared that he must not be taken, and that with his Virginia troops he would escape on two little boats that were to arrive from Nashville in the morning. He passed the command to Pillow, and Pillow, declaring that he too would escape, passed it on to Buckner. Floyd and Pillow with their men made good their escape; so did Colonel Forrest, the cavalry leader, and his mounted force.

In the early morning Buckner sent a note to Grant offering to capitulate. The answer is well known. Grant demanded “unconditional surrender,” and added, “I propose to move immediately on your works.” Buckner was too good a soldier to sacrifice his men in needless slaughter. His men were so worn with eighty-four hours of fighting and watching that many of them had fallen asleep while standing in battle-line and under fire. He accepted the “ungenerous and unchivalrous terms,” as he pronounced them, and surrendered Fort Donelson and the army, consisting of at least fourteen thousand men, with all its stores of ammunition. The Union loss was over twenty-eight hundred men. The Confederate loss, killed and wounded, was about two thousand.

The capture of Fort Donelson did three things. First, it opened up the way for the Federal army to penetrate the heart of the western South and gave it control of Kentucky and of western Tennessee. Second, it electrified the North with confident hopes of ultimate success. It was the first great victory for the North in the war. Bull Run had been a moral victory to the South, but the vanquished were weakened scarcely more than the victors. At Donelson, the victors gained control of an extensive territory and captured a noble army which could ill be spared by the South and which could not be replaced. Third, the capture of Donelson forced before the nation a new man — Ulysses S. Grant.