From December 12 to 15, English and the 2nd New Jersey fought at the Battle of Fredericksburg. After the winter encampment and the infamous Mud March, in January 1863, English and the 2nd fought were reorganized into the 1st Brigade of the 1st Division of VI Corps with whom they would serve to the war's end. In May, they fought in the Chancellorsville Campaign seeing action at the Second Battle of Fredericksburg May 3–4 where they took the stonewall that had stopped them almost five months before.