...n the battle of Fredericksburg, in which his regiment was mostly employed in skirmishing, and covered the rear when the army recrossed the Rappahannock. His powers of endurance were again tasked in Burnside 's attempted advance, which was stopped by the mud; and once more his regiment returned to camp routine near the Fitzhugh House. As a part of Carr's brigade, of Sickles's corps, the First Massachuse...