The Confederates were at a great disadvantage as Van Dorn had not arrived, and they were confronted by Grant's overwhelming numbers. Shiloh church was again the storm center, and was used by Beauregard as his headquarters.
During the afternoon Beauregard became convinced that the battle was lost, and ordered a retreat, which was skillfully made, for he maintained a front firing-line, and the Federals did not suspect his retreat for some time.
The Federals were left in possession of the field, while Beauregard's troops were wading through mud on their way to Corinth.
Nothing yet on the American continent had ever been witnessed by any human being that would equal the agony and woe that was endured on this retreat; the road was almost impassable, and the Confederate army, extending along this road for six to eight miles, was struggling along through a downpour of rain, which, ere long, as night hovered over them, turned to hail and sleet. There were wagons loaded with wounded, whose wounds had not yet been attended. The wounded that died on the way were left by the wayside.
Some days after the battle Beauregard reported to his government at Richmond as follows: "This army is more confident of ultimate success than before its encounter with the enemy."
In his address to his soldiers he said: "You have done your duty. Your countrymen are proud of your deeds on the bloody field of Shiloh: Confident of the ultimate result of your valor."
The two days at Shiloh were astonishing to the American people. Bull Run was a skirmish in comparison with Shiloh. The loss on each side was more than 10,000 men. General Grant said that after the battle there was an open field so covered with dead that it would have been possible to walk across it in any direction stepping on dead bodies without the foot touching the ground.
This proved a great victory for the Federals, as it left them in full possession along the Tennessee and in the surrounding country.