James Adelbert Mulligan was colonel of the 23rd Illinois Volunteer Infantry Regiment in the Union Army during the American Civil War. On February 20, 1865, the United States Senate confirmed the posthumous award to Mulligan the rank of brevet brigadier general of U.S. Volunteers to rank from July 23, 1864, the day before he was mortally wounded at the Second Battle of Kernstown, near Winchester, Virginia. He commanded the Federal forces at the First Battle of Lexington, and later distinguished himself in other engagements in the Eastern theater prior to his death in battle.
James Mulligan was born June 30, 1830 in Ithaca, New York. His parents had immigrated from Ireland, and his father died when he was a child. His mother remarried a Michael Lantry of Chicago, Illinois, and moved there with her son, who later attended the Catholic College of North Chicago. From 185254 Mulligan read law in the offices of Isaac N. Arnold, U.S. Representative from the city. He was admitted to the bar in 1856, and commissioned a second lieutenant in the Chicago Shield Guards.
Source: Wikipedia