The Sixth corps proceeded toward the Chickahominy, which it reached at a point several miles above the railroad crossing at Bottom's Bridge, occupying the extreme right of the Union line of battle as formed along that river. The position of the Union army was now as follows: Keyes' corps had crossed the Chickahominy at Bottom's Bridge, and Heintzelman had followed, taking a position between Keyes and the bridge. Sumner was on the railroad, and Franklin on the right near New Bridge; Stoneman's cavalry was on the right of the Sixth corps, and Porter's divisions were in the rear, within supporting distance.
On the 23d, General Stoneman with his cavalry pushed forward toward Mechanicsville, supported by Davidson's brigade. The brigade halted for the night near Beaver Dam creek, a marshy stream pouring into the Chickahominy. On the following morning the brigade again pushed forward, the men making their way with great difficulty through a swamp, then plunging through the stream, then forcing their way through brambles and briars, and again wading through the water; until the men seemed to have become amphibious. They at length found the enemy near the little village of Mechanicsville.
The brigade, with Wheeler's battery, formed in line of battle on some commanding grounds, and quietly rested for the night. On the morning of the 24th, the Seventy-seventh and part of the Thirty-third were ordered to advance toward the village and reconnoiter the position. Hardly had the advance commenced before the rebels opened upon the two commands a fierce cannonade, which forced our men to lie down, that the shells might pass over them. Wheeler's battery responded nobly to the rebel artillery, and presently General Davidson ordered Colonel McKean to charge the village with his regiment. The men rose to their feet and started forward with a yell. Down the hill they rushed impetuously, cheering and yelling; but the two rebel regiments, the Seventh and Eighth Georgia, startled by the shouts, seized their muskets and ran; firing but one parting salute. Their battery also limbered up and beat a hasty retreat; and as our men reached the village they were seen lashing their horses into a run, and in a moment they disappeared altogether down the road.
In their haste the rebels forgot to carry off their knapsacks, canteens and haversacks; and our boys gathered them up to be kept till called for. They had also left a great many guns and cartridge boxes; and a flag, which the Seventy-seventh bore away in triumph.
On the 26th of May, the enemy was discovered in considerable force at Hanover Court House, to the right and rear of our army. A part of Porter's corps was sent to meet this rebel force, and if possible drive it from its position. After a fatiguing march through mud and rain, General Emory, with his own brigade, and other troops of the corps, came up with the enemy near Hanover Court House, and at once commenced advancing slowly against the line of the enemy, when, being reinforced by part of Martindale's brigade, a charge was ordered and the rebels were routed. They fled precipitately, leaving one of their guns in the hands of our troops.
Being reinforced, the rebels turned upon our troops, but were gallantly held by Martindale's brigade until General Porter brought a large force to the field. The rebels were again attacked and completely routed. They left about two hundred of their dead on the field to be buried by our men. Seven hundred prisoners were captured, beside two railroad trains, a twelve pound gun and many small arms. Our own loss amounted to about fifty killed and more than three hundred wounded and missing.
Charge of the 77th New York at Mechanicsville