Neither was all the shelling and sharpshooting done by the enemy. The Federals were by no means on the defensive, but were besieging Richmond, and neglected no opportunity to worry the enemy, or wrest from him even so much as a foot of ground. Directly in front of Sumner’s headquarters, at the edge of a large field, were the remains of an old house, and near it an apple-tree, behind which there was usually stationed one of our sharpshooters, who amused himself in exchanging shots with a Confederate rifleman who had a lodge in the branches of a large pine on the farther side of the field. The elevated nature of the ground in the rear of this tree afforded the troops there encamped an opportunity of witnessing these practices, and when a particularly good shot was made, they would usually manifest their appreciation of it by a loud cheer.

These days at Fair Oaks, as well as those that followed, embracing the whole period from the 9th of June till the time when the Army of the Potomac was finally settled down at Harrison’s Landing, were among the most exciting in the history of the regiment. In the first place, the men were not only exposed to some of the worst dangers of war, but also suffered intensely from the hot weather, unhealthy location of the camps, and severe labor. From some mistaken notion, they were ordered to leave their overcoats and blouses at White House Landing, the want of which was keenly felt, as the nights were cold, and the fogs, especially after nightfall, so dense as closely to resemble rain, while the days were broiling hot. The dress-coat worn by them, being a close-fitting garment, was ill-adapted to fatigue duty, and not sufficiently thick to protect them from the chilling night air.

The standing order requiring all troops at the front to quit their tents at three o’clock in the morning, and remain standing, nearly motionless, in line of battle till sunrise, proved very exhaustive; and all these hardships combined, to which should be added the impurity of the water and the poisoned air of the battle-field, produced many cases of fever and other equally fatal diseases. On the afternoon of the 14th of June, companies C and E were ordered on picket in the swamp at the left of the railroad, nearly in front of Hooker’s division. This place was considered one of the worst on the whole picket line, for several reasons; skirmishes there were more common than at any other point, and the swamp was very wet, being in places little better than a morass, and everywhere filled with a dense undergrowth of bushes and briers. The pickets were stationed behind trees, which in many instances were scarcely large enough to cover the body, and about them no footing save a few hussocks or uncovered roots.

The night of the 14th was unusually mild and beautiful; the moon shone brightly, throwing here and there a beam of its soft light down through the branches of the pines, and relieving the place of some of its natural gloom. There seemed to be some sort of a festival or celebration in the camp of the enemy, as several of their bands played merrily all the evening. Not a shot was fired during the whole night, and this peaceful order of things continued nearly all the succeeding day (Sunday), which was warm and sultry. At about three o’clock in the afternoon, a violent thunder-storm came up, accompanied by a strong wind. When the storm was at its height, and our guards were crouching under the trees and bushes to shield themselves from the pelting rain, the crackling of the brush in their front was heard, and presently the heads of the enemy were seen through the undergrowth. This was to be a raid upon our pickets, and the time was chosen in the hope of finding them unprepared, and confused by the tempest; but our men were vigilant, and as soon as the enemy were seen, began to fire. The latter replied by a loud screech and a deafening volley of musketry, showing that they were present in large numbers, and immediately after charged. Our pickets fell back from their posts to the edge of the woods, firing as they retired, and upon reaching the reserves under Captains Leach and Doten, formed in line. The Confederates, to the number, apparently, of a full regiment, followed slowly on, till they came to within a few yards of the edge of the wood, when they paused, and again fired several volleys; but by this time the swamp was being shelled by our batteries. The shells bursting among the trees, and throwing down large fragments, caused a sudden termination of the assault, and the retirement of the enemy. During this fight, which lasted about fifteen minutes, some soldiers of Company E captured one of the enemy in the swamp, while attempting to retreat with his comrades. In this affray, also, George D. Brown of Company C, a very faithful and intelligent soldier, was killed; and Charles Kleinhans of Company E, fatally wounded. The body of Brown was found by his comrades, when they returned to their posts, in a most shocking condition; he had apparently been shot through the vitals and afterward bayoneted through the lower jaw and neck; his clothing had been stripped from his body, and every article of value he had upon his person carried away.

On the 16th of June, the Brigade was relieved of its post at the extreme front, and ordered into the grove of oaks, in the rear, where the ground was much higher. The 18th of June was a day of great excitement. In the afternoon, our pickets at the centre advanced, bringing on a sharp engagement, which lasted for several hours; and this was followed by a very determined advance of a large body of the enemy’s infantry on the Nine Miles Road, which ran directly through our camp. They came along in fine style, and in full view of our troops, until they reached a point about eighty yards from one of our outworks, on the edge of the forest, when its battery opened on them with shell and grape. The column was at once thrown into confusion, a wild flight soon following, the dead and wounded being left in the road. After nightfall, the wounded were gathered up by our men and brought into camp, and the dead buried in the field near by.

On the 19th, the Sixteenth Massachusetts Infantry, forming a part of General Hooker’s division, encamped at the left of the railroad, near the famous twin houses, had a severe engagement with the enemy, in the swamp before referred to, losing thirty-four of its number killed and wounded. The regiment was ordered to advance through the thick woods, and when well into them, encountered a superior force of the enemy posted behind the trees.

June 20, companies C, E, and D, together with several companies of the Sixty-ninth and Eighty-eighth New York regiments, were detailed to work in the trenches in front of General Hooker’s division. A little after noon, the enemy commenced shelling the working party, keeping it up for nearly two hours. There were no casualties. On the 23d, several companies of the regiment were again detailed to go on picket in the swamp, and, with a portion of the First Massachusetts Infantry, advanced through the woods to the enemy’s rifle-pits on the farther side. A sharp skirmish was the result, lasting till near nightfall, dwindling into picket-firing, and in this form continuing all night.

An unusual and strange proceeding was attempted by a certain staff-officer of the corps, on the night of the 26th, in which companies C, E, and G participated. Toward dusk, these commands marched to the headquarters of the Brigade Quartermaster, where each man was given a new axe and helve, and told to put them together. This was a piece of work to which most of the soldiers were quite unaccustomed; but they contrived to do it in a rude manner, and then, under the aforenamed staff-officer, were marched down the railroad, in the direction of Richmond. The men were sent into the forest on either side of the track, and ordered to cut down the trees. It was an insane performance. The woods were thick and inky dark; the soldier could with difficulty discern the tree he was at work upon; the axes were insecurely attached to the helves, constantly coming off; and, worse than all else, the men were at work outside of our pickets, and within a few yards of the enemy. This farce was kept up not longer than ten minutes, when the Confederates suddenly closed it by firing several volleys among the workmen. Mr. Staff-Officer thereupon concluded to cease operations at this point, and take his command farther to the right of the line. Here the same droll proceeding was repeated, and with the same results, except that this time the men barely escaped capture. Nearly the whole night was occupied by this movement, the companies reaching camp at four o’clock the next morning.

There had been, for several days prior to this, many indications of a great movement on the part of the enemy. Firing on the picket lines had greatly increased, and in many places quite formidable attacks had been made. Some of the guards had reported having heard the rumbling of artillery and baggage-wagons within the enemy’s lines, the noise indicating a movement of the trains towards our right. All during the 26th there had been heavy firing in the direction of Porter’s corps, and at night of this day the news of the battle of Mechanicsville reached our camp at the centre.

About noon of the 27th, loud and continuous firing, growing hourly more severe, was heard from the same quarter, and at five o’clock in the afternoon, the order came for the Brigade to march, each man being supplied with three days’ rations, and told to take his blanket. At the time the order was received, companies A and I of the regiment were on picket, and could not be recalled. The brigade line was promptly formed at the hour named, and the regiments at once moved out of camp, in the direction of Gaines’ Mill. Proceeding a mile on the main road, the troops were halted, where, after pausing a few moments, they were joined by French’s brigade.