U.S. Army - Army of the Potomac

Fifth Army Corps

Major General George Sykes (until 3/23)

Major General Gouverneur K. Warren (after 3/23)

On March 23-25 the First Corps was dissolved and merged into the Fifth Corps. The existing Second Division was consolidated into the Fourth Brigade of the First Division. A new Fourth Division was created from First Corps Brigades.

First Division

Bde. Gen. J. J. Bartlett

First Brigade

Colonel W. S. Tilton (until 3/25)

consolidated 3/25 into 4th Bde. (see below)

Second Brigade

Colonel J. B. Sweitzer

Third Brigade

Colonel J. Hayes

consolidated 3/25 into 4th Bde. (see below)

Fourth Brigade

Brigadier General Romeyn Ayres

created 3/25 from 1st & 3rd Bdes. (above)

Second Division

Bde. Gen.Romeyn B. Ayres (until 3/24)

Bde. Gen. Henry Baxter (after 3/24)

First Brigade

Major L. B. Brown (until 3/23)

Colonel S. H. Leonard (after 3/24)

consolidated into 1st Div., 4th Bde. (above)

Second Brigade

Colonel Richard Coulter

reorganized 3/23

Third Brigade

Colonel George Ryan (until 3/23)

Colonel N. T. DuShane (after 3/24)

merged into 1st Div., 4th Bde. 3/23 (above)

reorganized from 1st Corps 3/24

Third Division

Colonel William McCandless

First Brigade

Colonel William O. Talley

Third Brigade

Colonel Joseph W. Fisher

Fourth Division

Bde. Gen. James Wadsworth

created 3/25 from First Corps Brigades

First Brigade

Bde. Gen. Lysander Cutler

Second Brigade

Bde. Gen. J. C. Rice

Third Brigade

Colonel Roy Stone

Artillery Brigade

3rd Massachusetts Battery

5th Massachusetts Battery

1st New York Artillery, Battery C

to Artilery Reserve, 3rd Bde.

1st New York Artillery, Battery D

from 1st Corps Artilery Bde.

1st New York Artillery, Battery E

from 1st Corps Artilery Bde.

1st New York Artillery, Battery H

from 1st Corps Artilery Bde.

1st New York Artillery, Battery L

from 1st Corps Artilery Bde.

4th New York Heavy Artillery, 2nd Batt.

from 22nd Corps, DeRussey's Div., 3rd Bde.

1st Ohio Artillery, Battery L

1st Pennsylvania Artillery, Battery B

from 1st Corps Artilery Bde.

3rd United Artillery, Batteries F & K

to Army Artillery Reserve

4th United Artillery, Battery B

from 1st Corps Artilery Bde.

5th United Artillery, Battery D

Headquarters Provost Guard

12th New York Infantry, Cos. D&F

Major Henry W. Ryder