After the battle, the Regiment went into Camp at Stoneman's Switch, on the Falmouth and Acquia Creek Railroad, about 2 miles from Falmouth.
In the meantime, on the 1st of October, 1862, Captain Opp had been promoted Major, and, on December 23d, Lieutenant-Colonel, Barrett and Craig having both resigned.
Captain Zinn was promoted Major, October 2d.
On January 18th, 1863, Sergeant Mather, B Co., was promoted Adjutant.
On January 19th, Burnside started the Army for a second attempt on Fredericksburg, but the heavy rain converted the movement into a "Mud March," and it was abandoned.
The outcome of December 13th and January 19th, was the removal of Burnside, on January 26th, from the command of the Army, and the substitution of Major-General Hooker.
These were experimental days, and rotation in office of Corps and Army Commanders largely practised, but the experiments were harsh indeed to the boys who did the tramping and the fighting.
On February 5th, by order of General Hooker, the Army of the Potomac was reorganized, and Reynolds assigned to the command of the 1st Corps; Couch, the 2d; Sickles, the 3d; Meade, the 5th; Sedgwick, the 6th; Sigel, the 11th; and Slocum, the 12th; the Cavalry under Stoneman.
The 84th and 110th Pa. and 12th New Hampshire, constituted the 2d Brigade, 3d Division, 3d Corps, with Bowman Commanding. Lieutenant-Colonel Opp in command of the Regiment.