General James Mulligan KIA CDV, seated pose by Lincoln photographer Fassett. Back marked Fassett’s Gallery, Chicago with blue 2 cent revenue stamp. . Mulligan raised the 23rd Illinois Volunteer Infantry Regiment in 1861, which was locally known as the "Irish Brigade." This unit included the "Chicago Shield Guards." In September 1861, he led his troops toward Lexington, Missouri, as word had been received that this vital river town would be attacked by the pro-Confederate Missouri State Guard under Major General Sterling Price. Commanded Camp Douglas, fought at the Battle of Leetown. On July 24, 1864, Mulligan led his troops into the Second Battle of Kernstown, near Winchester, Virginia. Late in the afternoon, Major General John B. Gordon's Confederate force attacked Mulligan's 1,800 soldiers from ground beyond Opequon Church. Mulligan briefly held off Gordon's units, but Confederate Major General John C. Breckinridge, a former U.S Vice President, led a devastating flank attack against the Irishmen from the east side of the Valley Pike. Sharpshooters under Confederate Major General Stephen D. Ramseur then attacked Mulligan's right flank from the west. Now encompassed on three sides, the Union battle line fell apart. Mulligan was shot by a sharpshooter and died two days later.