XXIV Corps (Union Army)

XXIV Corps was a corps of the Union Army during the American Civil War.

In December 1864, the white and black units of the Army of the James were divided into two corps. The black troops were sent to the XXV Corps; the white troops became the XXIV Corps, under the command of Edward O. Ord. The bulk of corps remained in the Petersburg trenches, but Adelbert Ames' second division took part in both Benjamin Butler's initial unsuccessful assault on Fort Fisher in December 1864 and the successful attack the following January. This division was ultimately absorbed into the revived X Corps in March 1865.

The remainder of the corps served in the Petersburg Campaign. When Ord assumed command of the Army of the James from Butler on January 1, 1865, John Gibbon took command of the corps and led it ably. The corps took part in the defeat of Lee at Hatcher's Run in February and were involved in the assaults of Fort Gregg and Fort Whitworth during the fall of Petersburg on April 2nd. The corps was engaged during the skirmish at Appomattox that occurred just prior to Lee's surrender. During the Appomattox campaign, an Independent Division of troops that had served in the Shenandoah Valley was added to the first and third divisions. The corps remained in Virginia until August, when it was disbanded.