1861–1865 - Civil War

One of the youngest major generals and corps commanders in the American Civil War, Henry Slocum led Union troops in many key battles of the Eastern and Western Theaters.

Key facts about Henry W. Slocum, one of the youngest major generals and corps commanders in the American Civil War who led Union troops in many key battles of the Eastern and Western Theaters.

Kirby Smith was one of seven full generals in the Confederate Army during the American Civil War. He was also the Confederacy's last full general to pass away.

Key facts about Kirby Smith, the last of the Confederacy's seven full general's to pass away after the American Civil War.

Commonly known as "Baldy," Major General William F. Smith was a prominent officer in both theaters of the American Civil War.

Key facts about Major General William F. Smith a prominent officer in both theaters of the American Civil War who was commonly known as "Baldy," Smith .

Brigadier General William Sooy Smith served in many of the Western Theater's important campaigns during the Civil War.

Key facts about Brigadier General William Sooy Smith who served in many of the Western Theater's important campaigns during the Civil War.

Key facts about the Battle of South Mountain.

The Battle of South Mountain was fought in Frederick and Washington counties, Maryland, on September 14, 1862, during Confederate General Robert E. Lee's Maryland Campaign.

On January 23, 1865, General P. G. T. Beauregard issued an unnumbered special field order announcing that Lieutenant General Richard Taylor was replacing General John Bell Hood as commander of the Army of Tennessee.

On January 27, 1864, William T. Sherman issued Special Field Orders, No. 11, launching his Meridian Campaign.

On November 9, 1864, Major General William T. Sherman issued Special Orders No. 120, establishing the chain-of-command, objectives, and directives for the Savannah Campaign.

On April 30, 1862, Major General Henry W. Halleck transferred Major General George H. Thomas from the Army of the Ohio to command the Army of the Tennessee in place of Major General Ulysses S. Grant who became Halleck's second-in-command.

On July 26, 1864, William T. Sherman issued Special Field Orders No. 44, assigning Oliver O. Howard to command of the Army of the Tennessee.

On June 14, 1864, Major General Benjamin F. Butler relieved Major General Quincy A. Gillmore of command of the Tenth Army Corps operating within the Department of Virginia and North Carolina.

On June 17, 1864, Major General Benjamin F. Butler issued special orders announcing that he was withdrawing his previous orders relieving Major General Quincy A. Gillmore of his command.

On July 21, 1861, Confederate General Joseph E. Johnston issued an unnumbered special order approving Brigadier General P. G. T. Beauregard's plan of attack for the First Battle of Bull Run.

On May 16, 1861, the U.S. War Department issued Special Orders, No, 135 relieving Brigadier General William S. Harney as commander of the Department of the West.

On September 10, 1861, the Confederate War Department issued Special Orders, No. 149, appointing General Albert Sidney Johnston to command of Confederate forces in the Western Theater.