The Commander-in-Chief reported to the Secretary of War that Casey's division "gave way unaccountably and discreditably." Five days later he promised to modify his charge, if he found occasion; but it was only in his final report, made many months after leaving the army, he was constrained to acknowledge the good conduct of the division--an act of tardy justice to deserving men.
Notwithstanding the great disparity in the numbers of those engaged on the rebel and Union sides, the losses were nearly equal. The Union army lost four thousand five hundred and seventeen in killed and wounded, and one thousand two hundred and twenty-two missing. Nearly one-half of all these losses were from Casey's and Couch's divisions. General Johnston reported the rebel loss in Longstreet's and Hill's commands at four thousand two hundred and thirty-six.
Among the trophies of the enemy, were ten pieces of artillery and four stands of colors.
With these trophies, they were satisfied to boast their victory; regardless of the fact that they had been the assailants in superior numbers, and had been repulsed with fearful slaughter, and that the only fruit of their boasted victory was a few guns and colors, as an offset for the loss of thousands of their soldiers. General Johnston himself was among the rebel wounded, and was forced to give over the command to another.
On the other hand, the Union army might, had the corps on the north bank of the Chickahominy promptly followed that of General Sumner across the river, have easily entered Richmond. But the hesitancy which characterized the movements of the army lost to us all the advantages of success. Early next day the treacherous river had risen to such an extent as to render crossing almost impossible; so the army remained as the battle of Fair Oaks had left it; three corps on the south, and two on the north side of the Chickahominy, separated by an almost unsurmountable obstacle.
From our camp at Gaines' Farm, the men of the Sixth corps could see the smoke of battle and hear the roar of artillery and musketry; but were not able to go to the assistance of their fellows.
The distance from Gaines' Farm to Fair Oaks was, in a direct line, scarcely more than four miles, but as all communications with the opposite side of the river were by way of Bottom's Bridge, the distance was about fifteen miles. The Vermont brigade essayed a crossing in our own front on the afternoon of the second day of the fight, with the view of rendering assistance on the other side, but the attempt was abandoned.