Thomas Alfred Smyth, brigadier general in the Union Army during the American Civil War, is born in Ballyhooly, County Cork on December 25, 1832. He is the last Union general killed in the war. In March 1867, he is nominated and confirmed a brevet major general of volunteers posthumously to rank from April 7, 1865.
Smyth works on his father’s farm in Ireland as a youth. He emigrates to the United States in 1854, settling in Philadelphia, Pennsylvania. He participates in William Walker‘s expedition to Nicaragua. He is employed as a wood carver and coach and carriage maker. In 1858, he moves to Wilmington, Delaware.
In 1861 Smyth enlists in the Union army in an Irish American three-months regiment, the 24th Pennsylvania, and is quickly made a captain. He is later commissioned as a major of the 1st Delaware Infantry, a three-years regiment. He serves at the battles of Chancellorsville and Fredericksburg, following which he is promoted to lieutenant colonel and then to colonel. During the Gettysburg campaign, he commands the 2nd Brigade, 3rd Division of the II Corps. During the Battle of Gettysburg, his men help defend Cemetery Ridge and advance to the area of the Bliss farm to oust enemy sharpshooters. He is wounded on the third day of the battle and relinquishes command briefly.
Smyth retains brigade command during the reorganization of II Corps before Ulysses S. Grant‘s Overland Campaign. He leads the second brigade of the first division from March 25 to May 17, 1864. When Colonel Samuel S. Carroll is wounded, Smyth is transferred to his command, the third brigade of second division, the Gibraltar Brigade. In October 1864, he is promoted to brigadier general during the Siege of Petersburg. He retains command of his brigade throughout the siege.
Between July 31, 1864 and August 22, 1864 and between December 23, 1864 and February 25, 1865, Smyth commands the 2nd division of the corps. In April 1865 near Farmville, Virginia, he is shot through the mouth by a sniper, with the bullet shattering his cervical vertebra and paralyzing him. He dies two days later at Burke’s Tavern, concurrent with the surrender of Robert E. Lee and his Confederate States Army at Appomattox Court House.
On March 18, 1867, President Andrew Johnson nominates Smyth for posthumous appointment to the grade of brevet major general of volunteers to rank from April 7, 1865, the date he was mortally wounded, and the United States Senate confirms the appointment on March 26, 1867. He is the last Union general killed or mortally wounded during the war, and is buried in Wilmington and Brandywine Cemetery in Wilmington, Delaware.