Martin Davis Hardin
Martin Davis Hardin was a brigadier general in the Union Army during the American Civil War. He was appointed a brigadier general on July 6, 1864, to rank from July 2, 1864, the date of U.S. Senate confirmation of his promotion.
Martin D. Hardin was born in Jacksonville, Illinois, the son of John J. Hardin. He was a family friend and protg of Abraham Lincoln. Although widely reported that it was at the Hardin family home that Lincoln first met his wife, Mary Todd, this is most likely false. Lincoln and his future wife probably met in Springfield. Hardin graduated from West Point in the Class of 1859, and was an aide to Robert E. Lee in the hanging of John Brown soon after. He lost his left arm in the Mine Run Campaign, but continued serving in the army. He was mustered out of the volunteer service in June 1864 but returned to active duty on Julywith an appointment to brigadier general. General Hardin commanded a division in the XXII Corps during the battle of Fort Stevens.
Source: Wikipedia