on the Union left, the 4th and 5th Texas were attacking Vincent's 16th Michigan on the Union right. Rallying the crumbling regiment (the smallest in his brigade, with only 263 men) several times, Vincent was mortally wounded during one Texas charge and was succeeded by Colonel James C. Rice. Vincent died on July 7, but not before receiving a deathbed promotion to brigadier general. Before the Michiganders could be demoralized, reinforcements summoned by Warren—who had continued on to find more troops to defend the hill—had arrived in the form of the 140th New York and a battery of four guns—Battery D, 5th U.S. Artillery, commanded by Lt. Charles E. Hazlett. (Simply maneuvering these guns by hand up the steep and rocky slope of the hill was an amazing achievement. However, this effort had little effect on the action of July 2. The artillerymen were exposed to constant sniper fire and could not work effectively. More significantly, however, they could not depress their barrels sufficiently to defend against incoming infantry attacks.) The 140th charged into the fray, driving the Texans back and securing victory for the Union forces on the hill. Col. Patrick "Paddy" O'Rorke, who personally led his regiment in the charge, was killed. Reinforced further by Stephen Weed's brigade of the V Corps, Union forces held the hill throughout the rest of the battle, enduring persistent fire from Confederate sharpshooters stationed around Devil's Den. General Weed was among the victims, and as his old friend Charles Hazlett leaned over to comfort Weed, the artilleryman was also shot dead. Evening and July 3 Later that day, Little Round Top was the site of constant skirmishing. It was fortified by Weed's brigade, five regiments of the Pennsylvania Reserves, and an Ohio battery of six guns. Most of the stone breastworks that are currently visible on the hill were constructed by these troops after the fighting stopped. Troops of the II, V, VI, and XII Corps passed through the area and also occupied Round Top. Little Round Top was the starting point for a Union counterattack at dusk on July 2, conducted by the 3rd Division of the V Corps (the Pennsylvania Reserves) under Brig. Gen. Samuel W. Crawford, launched to the west in the direction of the Wheatfield. On July 3, Hazlett's battery (six 10-pounder Parrott rifles, now under the command of Lt. Benjamin F. Rittenhouse) fired into the flank of