The dull boom of two guns from the westward was evidently a signal, and the bugle sounded “forward.” That day it was the turn of our Regiment to lead the Brigade, and of our Brigade to lead the Corps, and we were at once en route in the direction of Fredericksburg, which was three miles away. Soon after the march began the sun rose, showing at first only its huge, dull-red disk, but soon rising above the haze, throwing its bright beams athwart the landscape, making it and us cheery with their warmth and shine. With the sunrise came a gentle movement of the air, pushing away the smoke from the uplands, but leaving the river valley thick with fog. Midway between our camp and the river we crossed the summit of a round-topped hill, from which, by reason of the sweep of the river, we could see for a distance the rolling lands of Stafford Heights, which on its left bank form the immediate valley of the Rappahannock, and over all these hills, now glowing in the sunlight, were moving in columns of fours, converging, apparently, toward a common centre, the various corps and divisions of the Army of the Potomac, more than a hundred thousand men.

Across the river could be seen, but not as yet distinctly, the fortified line of hills occupied by Lee’s Army of Virginia. Between us and them, the river and the river bottoms on the farther side, with all of the town of Fredericksburg except the church spires and the cupola of its Court House, were shrouded in vapor.

General Burnside had established headquarters in the Phillips house, a fine brick mansion overlooking the valley and the town, and our grand division was massed near by in a large field of almost level land, entirely bare of tree or shade, and here we passed the whole day under a warm December sun, which softened the ground into mud, glared in our eyes, and baked our unprotected heads.

Before we reached this spot the dogs of war were in full cry. Down by the river side there were frequent sputterings of musketry, and the hills on either side of the river were roaring with the sound of the great guns from their earth-work batteries.

About the Phillips house, on its piazza and in its rooms, there were gatherings of general and field officers, discussing with more or less warmth the situation and the probabilities. Occasionally a mounted officer or orderly would come dashing up from the river side, looking hot and anxious, and after delivering or receiving reports or orders, would hasten down again to his station; but, on the whole, things were very deliberately done.

When the fog lifted, below us, and directly on our bank of the stream, could be seen the hospitable-looking Lacy house with its low wings, under the lee of which, sheltered from the fire of the enemy, were groups of officers, their horses picketed in the dooryard. On the opposite side of the river, its houses coming close down to high-water mark, lay the compactly built town of Fredericksburg; beyond it a space of level land, narrowing at the upper end of the town to nothing, but opening below into a wide plain, which, so far as we could see, was everywhere bounded to the west by a rise of land more or less abrupt, forming the lip of the valley there. This rising land terminated just above the town, in a bluff at the river bank.

The right and centre grand divisions of Burnside’s army occupied the heights on the eastern side of the river. Lee’s forces were entrenched in those on the western side. Between them, the River Rappahannock and the city of Fredericksburg.

The left grand division, under Franklin, one or two miles down the river, before 10 o’clock had laid pontoon bridges and secured a foot-hold on the opposite shore. Between him and the enemy was a nearly open plain, the extent of which, from the river to the rising ground, was more than a mile. On our left everything had gone smoothly and well; all opposition to the crossing had been easily overcome, but in the immediate front of the town it was quite another story.

At early dawn the engineers were ready and began to lay the pontoon bridges opposite the town. A dozen or more of the boats had been moored into position, and men were actively at work laying plank across, when Barksdale’s Mississippians opened fire and drove the Union men to cover. Calling up a brigade of Hancock’s men to cover the work, repeated attempts were made to bridge the river, but the Confederates occupying the houses on their bank could fire from windows without being seen themselves, and the endeavors of the engineers, although gallantly made, were unsuccessful.

Then followed a long consultation at headquarters, which resulted in an order to concentrate the fire of our artillery on Fredericksburg, and for an hour or more a hundred and fifty guns played on the town. Fires broke out in several places and raged without restraint. During and after the cannonade our troops essayed again and again to moor the boats and lay the bridge, but the fire of the enemy, although reduced, was yet too fierce, and at last, about four, P. M., two or three of the boats of the pontoon train were loaded with volunteers and pushed across the river at a bend above the buildings, the rebels were flanked and driven from their shelter, and the bridge was speedily constructed.