Henry served in the Civil War.

Conflict Period:
Civil War (Union) 1
Army 1
Major General 1
24 Sep 1827 1
Delphi, Onondaga County, New York 1
14 Apr 1894 1
Brooklyn, New York 1

Related Pages

View more similar pages

Pictures & Records (10)

Add Show More

Personal Details

Full Name:
Henry Warner Slocum 1
Full Name:
Henry W Slocum 2
24 Sep 1827 1
Delphi, Onondaga County, New York 1
Male 1
14 Apr 1894 1
Brooklyn, New York 1
Green-Wood Cemetery, Brooklyn, NY 1
Clara Rice 1
1854 1

Civil War (Union) 1

Army 1
Major General 1

Civil War (Union) 2

Army 2
Discharge Rank:
Colonel 2
Enlistment Rank:
Colonel 2
Military Unit:
27th Infantry 2
New York 2

Looking for more information about Henry W Slocum?

Search through millions of records to find out more.


Slocum was the Major General leading Union troops at the Battle of Averasborough (16 March 1865). There was no winning side to the battle but the Confederacy suffered more losses. The battle was a sort of prelude to the Battle of Bentonville, which was the last battle of the Civil War and won by the Union.

Henry Warner Slocum-Statue Gettysburg

The monument to Major General Henry Slocum is south of Gettysburg on Slocum Avenue. (39.819128° N, 77.224588° W; map) It was dedicated on September 19, 1902 by the State of New York.


About General Slocum's monument

The monument to General Slocum cosnsists of a bronze equestrian statue created by sculptor Edward Clark Potter, who created a number of equestrian statues but is best known for the lions in front of the New York Public Library. The statue weighs 7,300 pounds and stands 15' 6" tall. It rests on a 16' tall base of Barre granite designed by A.J. Zabriskie. Large bronze inscribed tablets are inset into the base on each side.


Monument map: Stevens Knoll  


From the front of the monument:


Major General
Henry Warner Slocum, U.S.A. 
In command of the Right Wing
of the Army of the Potomac
at the
Battle of Gettysburg
July 1, 2, 3, 1863
"Stay and fight it out"
Gen. Slocum at Council of War July 2, 1863

Erected by the State of New York 1902


From the rear of the monument:


Major General Henry Warner Slocum, U.S. Vols.
Cadet U.S. Military Academy July 1, 1848. 2nd Lieut. First Artillery July 1, 1852. 1st Lieut. March 3, 1855. Resigned October 31, 1856.


Col. 27th N.Y. Infantry May 21, 1861. Severely wounded Bull Run July 21, 1861. Brig. Gen'l. of Volunteers August 9, 1861. Assigned to command of 2nd Brigade, Franklin's Division, Army of the Potomac September 4, 1861 and to command of the 1st Division, 8tj Corps May 18, 1862.


Maj. Gen'l. U.S. Vols. July 4, 1862. Assumed command of 12th Corps October 20, 1862. Temporarily commanded the right wing of the Army of the Potomac, consisting of the 5th, 11th, and 12th Corps April 28-30, 1863. In command of the right wing of the Union Army composed of the 5th and 12th Corps at Gettysburg July 1, 2, 3, 1863.


Relinquished command of the 12th Corps April 18, 1864 and on April 27, 1864 assumed command of the Military District of Vicksburg, which he held until August 14, 1864.


Assumed command of the 20th Corps August 27, 1864 and the left wing of Sherman's Army known as the Army of Georgia, November 11, 1864. Assigned in orders dated June 27, 1865 to command of the Department of the Mississippi, Headquarters at Vicksburg which he held until relieved September 18, 1865 and on September 28, 1865 Gen'l. Slocum resigned from the Army and was honorably discharged.


More about Henry Slocum

Henry Warner Slocum was born at Delphi, New York on September 24, 1826. He graduated from West Point with the class of 1852, and served against the Seminoles and in Charleston Harbor. In 1856 he resigned his commission to practice law, settling in Syracuse and becoming a state legislator and a colonel in the state militia.


With the outbreak of war Slocum became Colonel of the 27th New York, and was wounded at First Bull Run. When he recovered he was given a brigade, and then a division in Franklin's 6th Corps. After Antietam he was given command of the 12th Corps, which performed well at Chancellorsville, although Slocum scathingly criticized Hooker.


Slocum was criticized for delaying his arrival at Gettysburg while sending his troops on ahead; he knew that as senior corps commander he would assume command if he arrived before Meade. Once he arrived he did well, holding the right flank of the army against repeated attacks by Ewell's Confederate 2nd Corps.

After the Union debacle at Chickamauga Slocum's 12th Corps was one of two corps of the Army of the Potomac chosen to go west under Hooker's command. Slocum immediately sent in his resignation. It was refused, and a compromise was achieved where Slocum and a part of his Corps would operate independently of Hooker.

When Hooker eventually resigned (over being asked to serve under former subordinate Oliver Howard) Slocum was called to take over the 20th Corps, which was the first Union unit enter Atlanta. Slocum commanded the left wing of Sherman's Army (the Army of Georgia) on the March to the Sea.


After the war he practiced law in Brooklyn and served three terms as a Democratic U.S. congressman. He also served on the Board of the Gettysburg Monument Commissioners. He died in Brooklyn in 1894

12th Army Corps


The monument to the Twelfth Army Corps is south of Gettysburg on Slocum Avenue (top right). A headquarters marker is on Baltimore Pike (middle right).

The Twelfth Corps was commanded at the Battle of Gettysburg by Major General Henry W. Slocum (USMA '52) a lawyer and state representative from New York.

Monument map: South Culp's Hill   

From the monument:

Army of the Potomac 
Twelfth Corps
Major General Henry J. Slocum
Brigadier General Alpheus S. Williams

First Division Brigadier General Alpheus S. Williams
Brigadier General Thomas H. Ruger
Second Division Brigadier General John W. Geary
Artillery Brigade Lieutenant Edward D. Muhlenberg
Provost Guard Tenth Maine (Four Companies)

July 1. Marched from near Littlestown to Two Taverns by the afternoon. Hearing the 1st and 11th Corps were engaged at Gettysburg the Corps advanced on the Baltimore Pike. Williams' Division to a position east of Rock Creek Geary's Division to the left of Union line extending to the summit of Little Round Top.

July 2. In the morning the Corps took position on the right of 1st Corps on a line extending from the top of Culp's Hill southeasterly across the low meadow into McAllister's woods. Later in the day the Corps exceptGreene's Brigade was withdrawn to support the left of the Army Johnson's Confederate Division at night advanced under cover of darkness and took possession of the works on the Corps Line on right of Greene's Brigade. About midnight the Corps returned and findingJohnson's Division in possession of the works formed line in front of that Division.

July 3. Before 1 A. M. the artillery of the Corps andRigby's Maryland Battery from Reserve Artillery in all 26 guns were so placed as to command the line occupied by Johnson's Division and at daylight opened fire under cover of which the infantry was advanced and attacked the Confederate position and after a contest lasting seven hours recaptured the works. Many prisoners and 5,000 small arms were captured. In the afternoon the Corps was in readiness to move.

July 4. Gen. Slocum in the morning advanced with a detachment of Ruger's Division and a battery and found that the Confederates in front had retired.

Casualties Killed 18 Officers 186 Men Wounded 43 Officers 769 Men Captured or Missing 2 Officers 64 Men Total 1082

From the marker:

Army of the Potomac
12th Corps Headquarters
Major Genegral
Henry W. Slocum
July 1, 2, 3, 4, 1863

were located on Powers Hill
260 yards westerly


About this Memorial Page

Anyone can contribute to this page. Please sign in or sign up—it's free.

Page Views:
181 total (1 this week)