John Mercer Brockenbrough (August 1, 1830 – August 24, 1892) was a farmer and a Confederate colonel in the American Civil War. Early life Johnathan Brockenbrough, the son of Moore Fauntleroy Brockenbrough and his wife Sarah Waller Smith was born August 1, 1830 in Richmond County, Virginia. John Brockenbrough was a 2nd cousin of John White Brockenbrough and his sister, Civil War diarist, Judith White (Brockenbrough) McGuire. He graduated from the Virginia Military Institute in 1850. Civil War At the start of the Civil War, Brockenbrough was appointed colonel of the 40th Virginia Infantry, which served attached to Brig. Gen. Charles W. Field's Virginia brigade in Maj. Gen. A.P. Hill's Light Division and later Maj. Gen. Henry Heth's division in the Third Corps, Army of Northern Virginia. Brockenbrough led his regiment through the Seven Days Battles, a punishing series of battles that caused 50% casualties in his regiment. Brockenbrough assumed command of the brigade after Field was wounded at the Second Battle of Bull Run and led it two days later at Chantilly. During the Maryland Campaign, Brockenbrough took part in the capture of Harpers Ferry, and then marched with the rest of the Light Division to the rescue of Gen. Robert E. Lee's army at Sharpsburg; his brigade was deployed on the far right of A.P. Hill's line and did not see any direct action there. At Fredericksburg, his brigade was ordered to plug a hole in the Confederate line that was being exploited by Union troops under Maj. Gen. George G. Meade. Brockenbrough lost control of his brigade during this action and two of his regiments split off with him and never reached the fighting. Lee apparently was not impressed with Brockenbrough's leadership qualities. Even though months had passed, the unit was still called Field's Brigade and Brockenbrough was still considered its temporary commander. Lee did not recommend John for promotion. In early 1863, Lee brought Brig. Gen. Henry Heth from assignment in Tennessee to replace Brockenbrough in command of the brigade (soon called "Heth's Brigade"), hoping to restore it to fighting shape. During the Battle of Chancellorsville, Heth took over command of the division when Hill was wounded on May 2, 1863, which meant that Brockenbrough was back in command of the brigade on May 3, when it lost around 300 men storming the enemy line. After the battle, Brockenbrough was given a rare commendation for leading