 His most notable service was as commander of his brigade (once known as the "Second New Jersey Brigade" of III Corps (ACW) but reorganized to include troops from other states) at the July 1863 Battle of Gettysburg, Pennsylvania.His brigade was in reserve at the beginning of the second day's fighting on the left flank of the Army of the Potomac, but regiments were moved about separately as higher commanders saw fit.One regiment, 6th New Jersey, fought near Devil's Den.