Skip to content

Mississippi 12th Infantry (Confederate)

1/5/61

Organized - Mississippi 12th Infantry - Mississippi

5/5/62

Battle - Williamsburg - York County, Virginia; James City County, Virginia; Williamsburg, Virginia

Williamsburg
Williamsburg

Following the Confederate withdrawal from their Yorktown position, Maj. Gen. George B. McClellan was not prepared to mount an immediate pursuit with his entire force from the siege lines he had occupied for nearly a month. Initially, he was able to send forward only a portion of his army, led by the Third Corps of Samuel P. Heitzelman, to follow Gen. Joseph E. Johnston's Confederates. Heitzelman's divisions, led by Brig. Gens. Joseph Hooker and Phil Kearny, made contact with Johnston's army four miles sout…READ MORE

31/5/62

Leadership Change - Brigade - Brigadier General Robert E. Rodes

Brigadier GeneralRobert E. Rodes

31/5/62

Battle - Seven Pines - Henrico County, Virginia

Seven Pines
Seven Pines

Gen. Joseph E. Johnston withdrew his army from the Virginia Peninsula toward the Confederate capital of Richmond as Maj. Gen. George B. McClellan's army pursued him. By the end of May, Johnston held a defensive position seven miles east of the city on the Richmond and York River Railroad. McClellan's army facing Johnston straddled the Chickahominy River and stretched south. Capturing the initiative from his Union foe, Johnston attempted to overwhelm two Federal corps isolated south of the river. The Confed…READ MORE

27/6/62

Battle - Gaines' Mill - Hanover County, Virginia

Gaines' Mill
Gaines' Mill

Despite his victory over the Confederates at Beaver Dam Creek on June 26th, Maj. Gen. Fitz John Porter's Fifth Corps abandoned its position early on June 27th and established a new defensive line along Boatswain's Creek, just north of the Chickahominy River.READ MORE

28/8/62

Leadership Change - Brigade - Brigadier General Winfield S. Featherston

Brigadier GeneralWinfield S. Featherston

28/8/62

Leadership Change - Division - Brigadier General Cadmus M. Wilcox

Brigadier GeneralCadmus M. Wilcox

28/8/62

Battle - Second Bull Run - Prince William County, Virginia

Second Bull Run
Second Bull Run

After the early summer collapse of the Union Peninsula Campaign offensive to capture Richmond, Robert E. Lee sought to move his army north and threaten Washington DC before Union forces could regroup.READ MORE

17/9/62

Leadership Change - Brigade - Colonel Carnot Posey

17/9/62

Leadership Change - Division - Brigadier General Roger A. Pryor, and Major General Richard H. Anderson

Brigadier GeneralRoger A. Pryor

Major GeneralRichard H. Anderson

17/9/62

Leadership Change - Division - Major General Richard H. Anderson

Major GeneralRichard H. Anderson

17/9/62

Battle - Antietam - Sharpsburg, Maryland

Antietam
Antietam

The Army of the Potomac, under the command of Maj. Gen. George McClellan, mounted a series of powerful assaults against General Robert E. Lee's forces along Antietam Creek near Sharpsburg, Maryland, on September 17th, 1862.READ MORE

13/12/62

Leadership Change - Brigade - Brigadier General Winfield S. Featherston

Brigadier GeneralWinfield S. Featherston

13/12/62

Leadership Change - Division - Major General Richard H. Anderson

Major GeneralRichard H. Anderson

13/12/62

Battle - Fredericksburg - Fredericksburg, Virginia

Fredericksburg
Fredericksburg

In early November, Maj. Gen. Ambrose E. Burnside took command of the Army of the Potomac, and made immediate plans to move the army once again toward Richmond.READ MORE

30/4/63

Leadership Change - Regiment - Lieutenant Colonel Merry B. Harris, and Major Samuel B. Thomas

Lieutenant ColonelMerry B. Harris

MajorSamuel B. Thomas

30/4/63

Leadership Change - Brigade - Brigadier General Carnot Posey

Brigadier GeneralCarnot Posey

30/4/63

Leadership Change - Regiment - Lieutenant Colonel Merry B. Harris

Lieutenant ColonelMerry B. Harris

30/4/63

Battle - Chancellorsville - Spotsylvania County, Virginia

Chancellorsville
Chancellorsville

On April 27, 1863, Maj. Gen. Joseph Hooker launched a turning movement designed to pry Robert E. Lee's Army of Northern Virginia out of its lines at Fredericksburg.READ MORE

1/7/63

Leadership Change - Regiment - Colonel William H. Taylor

1/7/63

Leadership Change - Brigade - Brigadier General Carnot Posey, and Colonel Nathaniel H. Harris

Brigadier GeneralCarnot Posey

ColonelNathaniel H. Harris

1/7/63

Leadership Change - Brigade - Brigadier General Carnot Posey

Brigadier GeneralCarnot Posey

1/7/63

Battle - Gettysburg - Gettysburg, Pennsylvania

Gettysburg
Gettysburg

In the summer of 1863, Confederate Gen. Robert E. Lee launched his second invasion of the Northern states. Lee sought to capitalize on recent Confederate victories and defeat the Union army on Northern soil, which he hoped would force the Lincoln administration to negotiate for peace. Lee also sought to take the war out of the ravaged Virginia farmland and gather supplies for his Army of Northern Virginia. Using the Shenandoah Valley as cover for his army, Lee was pursued first by Union Maj. Gen. Joseph Ho…READ MORE

5/5/64

Leadership Change - Brigade - Brigadier General Nathaniel H. Harris

Brigadier GeneralNathaniel H. Harris

5/5/64

Leadership Change - Division - Brigadier General William Mahone, and Major General Richard H. Anderson

Brigadier GeneralWilliam Mahone

Major GeneralRichard H. Anderson

5/5/64

Battle - Wilderness - Spotsylvania County, Virginia; Orange County, Virginia

Wilderness
Wilderness

The first battle between Lt. Gen. Ulysses S. Grant and Gen. Robert E. Lee erupted late in the morning of May 5, 1864, as Maj. Gen. Gouverneur K. Warren's Union V Corps attacked Lt. Gen. Richard S. Ewell's Second Corps on the Orange Turnpike southwest of the old Chancellorsville battlefield. Although Federal infantry managed to break through at several points, the Confederate line held. Fighting shifted to the south as Lt. Gen. A.P. Hill's Third Corps engaged Maj. Gen. Winfield S. Hancock's II Corps and ele…READ MORE

8/5/64

Leadership Change - Division - Brigadier General William Mahone

Brigadier GeneralWilliam Mahone

8/5/64

Battle - Spotsylvania Court House - Spotsylvania County, Virginia

Spotsylvania Court House
Spotsylvania Court House

Following the Battle of the Wilderness, Lieut. Gen. Ulysses S. Grant marched the Union army south with the hope of capturing Spotsylvania Court House and preventing Robert E. Lee's army from retreating further. Lee's Confederates, however, managed to get ahead of the Federals and block the road. Fighting began on May 8th, when the Union Fifth Corps under Maj. Gen. Gouverneur K. Warren and the Sixth Corps under Maj. Gen. John Sedgwick engaged Confederate Maj. Gen. Richard Anderson's First Corps at Laurel Hi…READ MORE

31/5/64

Battle - Cold Harbor - Hanover County; near Mechanicsville, Virginia

Cold Harbor
Cold Harbor

After two days of inconclusive fighting along Totopotomoy Creek northeast of Richmond, Lt. Gen. Ulysses S. Grant and Gen. Robert E. Lee turned their sights on the crossroads of Cold Harbor. Roads emanating through this critical junction led to Richmond as well as supply and reinforcement sources for the Union army. On May 31, 1864, Maj. Gen. Philip Sheridan's cavalry captured Cold Harbor. The next day, Sheridan held the crossroads against a Confederate attack. With reinforcements from both armies arriving…READ MORE

18/8/64

Leadership Change - Brigade - Colonel Joseph M. Jayne

18/8/64

Leadership Change - Division - Major General William Mahone

Major GeneralWilliam Mahone

18/8/64

Battle - Globe Tavern - Petersburg, Virginia

27/10/64

Leadership Change - Brigade - Brigadier General Nathaniel H. Harris

Brigadier GeneralNathaniel H. Harris

27/10/64

Battle - Boydton Plank Road - Dinwiddie County, Virginia

2/4/65

Battle - Third Petersburg - Dinwiddie County, Virginia; Petersburg, Virginia

Third Petersburg
Third Petersburg

With the Confederate defeat at Five Forks on April 1st, Lieut. Gen. Ulysses S. Grant and Maj. Gen. George Meade ordered a general assault against the Petersburg lines by the Second, Ninth, Sixth and Twenty-Fourth Corps to take place April 2nd. In the pre-dawn darkness, the Union infantry gained a successful breakthrough where Maj. Gen. Horatio G. Wright's advancing Sixth Corps met the Confederate lines held by Maj. Gen. A. P. Hill near the Boydton Plank Road. Hill was killed trying to reach his troops in t…READ MORE

9/4/65

Battle - Appomattox Court House - Appomattox Court House, Virginia

Appomattox Court House
Appomattox Court House

Between 26,000 and 28,000 Confederate soldiers surrendered and were paroled.READ MORE

9/4/65

Mustered Out - Mississippi 12th Infantry - Mississippi

Related Records

Search for related service records