On April 14, 1861, Black entered the Union Army as a private in the 11th Indiana Volunteer Infantry Regiment on April 14, 1861. He became sergeant major on April 25, 1861. After three months of service, the brothers were mustered out of the volunteers and organized Company "K" of the 37th Illinois Volunteer Infantry Regiment. John Black became major of the regiment on September 5, 1861. He was wounded in the right arm at the Battle of Pea Ridge, Arkansas, on March 7, 1862. In July 12, 1862, John Black was promoted to the rank of lieutenant colonel and became commander of the 37th Illinois Infantry. Black led his regiment against a fortified Confederate position during the Battle of Prairie Grove, Arkansas, on December 7, 1862. The unit suffered heavy casualties and was eventually forced to retreat. Black himself was seriously wounded. An 1896 review of numerous actions during the war resulted in John Black being awarded the Medal of Honor for his actions at Prairie Grove. Black's brother William also received the medal, making them the first of five pairs of brothers to both receive the Medal of Honor as of 2005. On December 31, 1862, Black was promoted to colonel of the 37th Illinois Infantry Regiment. He was given temporary command of Brigade 1, Division 2, XIII Corps, Department of the Gulf, between November 11, 1863, and February 11, 1864, of Brigade 3, Division 2, Reserve Corps of the Department of the Gulf between February 3, 1865, and February 18, 1865, and of Brigade 3 Division 2, XIII Corps, Department of the Gulf, between February 18, 1865, and March 5, 1865. Black resigned his commission in the volunteer service on August 15, 1865. On January 13, 1866, President Andrew Johnson nominated Black for appointment to the grade of brevetbrigadier general of volunteers to rank from April 9, 1865, for gallant services in the assault on Fort Blakeley, Alabama on that date, and the U.S. Senate confirmed the appointment on March 12, 1866.
Medal of Honor citation
Rank and organization: Lieutenant Colonel, 37th Illinois Infantry. Place and date: At Prairie Grove, Ark., December 7, 1862. Entered service at: Danville, Ill. Born: January 27, 1839, Lexington, Holmes County, Miss. Date of issue: October 31, 1893. Citation:
Gallantly charged the position of the enemy at the head of his regiment, after 2 other regiments had been repulsed and driven down the hill, and captured a battery; was severely wounded.
John C. Black died August 17, 1915 at Chicago, Illinois. He is buried in Spring Hill Cemetery and Mausoleum, Danville Illinois. His grave can be found in block 12, lot 54.
