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XI Corps (ACW)
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The XI Corps (Eleventh Army Corps) was a corps of the Union Army during the American Civil War, best remembered for its humiliating defeats at the battles of Chancellorsville and Gettysburg in 1863.
une 26, 1862, President Abraham Lincoln ordered that "the troops of the Mountain Department, heretofore under command of General John C. Frémont, shall constitute the First Army Corps, under the command of General Frémont." The corps thus formed was, for the most part, the same as the one afterwards known as the XI Corps, and within a short time it was officially designated as such.
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The XI Corps (Eleventh Army Corps) was a corps of the Union Army during the American Civil War, best remembered for its humiliating defeats at the battles of Chancellorsville and Gettysburg in 1863.
Formation and the Valley Campaign
On June 26, 1862, President Abraham Lincoln ordered that "the troops of the Mountain Department, heretofore under command of General John C. Frémont, shall constitute the First Army Corps, under the command of General Frémont." The corps thus formed was, for the most part, the same as the one afterwards known as the XI Corps, and within a short time it was officially designated as such. This order of President Lincoln was included in the one constituting John Pope's Army of Virginia, which was formed from the three commands of Frémont, Nathaniel P. Banks, and Irvin McDowell. Frémont's troops had seen considerable service in western Virginia (modern West Virginia), having fought hard in the Valley Campaign against Thomas J. "Stonewall" Jackson at McDowell and Cross Keys.
Major General Franz Sigel succeeded to Frémont's command on June 29, 1862. The XI Corps was composed predominantly of German immigrants. Many of these soldiers could speak little English beyond "I fights mit Sigel", which was their proud slogan. President Lincoln chose Sigel less for his military skills than his influence on this important political constituency. Sigel was in command at the Second Battle of Bull Run, where the corps encountered more hard fighting, losing 295 killed, 1,361 wounded, and 431 missing; total, 2,087. At this time the three divisions were commanded by Generals Robert C. Schenck, Adolph von Steinwehr, and Carl Schurz (all with German-speaking skills); there was also an independent brigade attached, under the command of Brig. Gen. Robert H. Milroy.
By General Orders No. 129, September 12, 1862, the corps's designation was changed to that of the XI Army Corps, a necessary change, as McDowell's command had resumed its original title of the I Corps. During the Maryland Campaign, and during the fall of 1862, the XI Corps remained in Northern Virginia, in front of Washington, D.C., occupying various outposts in the vicinity of Centreville. In December, it marched to Fredericksburg, but was not present at the battle, after which it went into winter quarters at Stafford, Virginia.
Chancellorsville and Gettysburg
Major General Oliver O. Howard replaced Sigel in command of the corps on April 2, 1863. (The reason for Sigel's relief is unclear. Some accounts cite failing health; others that he expressed his displeasure at the small size of his corps and asked to be relieved.)
General Howard commanded the corps at Chancellorsville, May 1–3, 1863, at which time it numbered 12,169 effectives, and was composed of the divisions of Generals Charles Devens, von Steinwehr, and Schurz. It contained 27 regiments of infantry, of which 13 were German regiments. The men of the XI Corps were good soldiers, for the most part tried and veteran troops, but their leadership let them down. On May 1, Robert E. Lee and his top subordinate, "Stonewall" Jackson, came up with a risky, but daring, plan of attack. They would split their 40,000-man force at Chancellorsville, with Jackson taking his Second Corps of 28,000 men around to attack the Union right flank. On May 2, Jackson flawlessly executed his stealthy flanking march, whose target happened to be the unlucky XI Corps. The right flank of the Union line was not anchored to any geographic barrier, such as a river or mountain; the flank was "in the air". Although General Howard had been warned of Confederate movement across his front, he took no steps to prepare his command against Jackson's attack. When Jackson's corps struck at about 6 p.m., the XI Corps was completely unprepared, many of the men engaged in eating supper. The attack was a complete success and the high point of Jackson's military career, but it was an utter disaster for the XI Corps. Some of the brigades were able to change front to meet the attack, and made a gallant resistance for over an hour, seriously retarding the enemy's onset, after which they retired slowly and in good order. The loss of the corps at Chancellorsville was 217 killed, 1,218 wounded, and 972 captured or missing; total, 2,407.
At Gettysburg the corps was still under the command of Howard; the divisions were under Generals Francis C. Barlow, Steinwehr, and Schurz, and contained 26 regiments of infantry and 5 batteries of artillery. The men of the Corps went into this battle with high anticipation and hopes that they could restore the reputation sullied at Chancellorsville. They arrived from south of town mid-day on July 1, 1863, aware that the I Corps was already heavily engaged just to the west of town. General Howard deployed one division (von Steinwehr's) on the heights of Cemetery Hill, as a reserve, and the other two divisions north of town. Howard briefly commanded the entire battle until the arrival of Winfield S. Hancock.
The Confederate Second Corps under Richard S. Ewell arrived from the north with a devastating assault. Barlow's division was deployed on the right and he foolishly moved his force to a small hill (that is now known as Barlow's Knoll), causing a salient in the line that could be attacked from multiple directions. The division of Jubal A. Early took advantage of this and Barlow's division reeled back. Barlow himself was wounded and captured. The collapse of the corps right flank had a domino effect on its left and on the I Corps division to its left, resulting in a general retreat of Union forces through the town of Gettysburg to the safety of Cemetery Hill, losing many captured on the way. On the second day, the XI Corps participated in the gallant and successful defense of East Cemetery Hill against a second attack by Early. On the day before the battle of Gettysburg, the corps reported 10,576 officers and men for duty; its loss in that battle was 368 killed, 1,922 wounded, and 1,511 captured or missing; total, 3,801, out of less than 9,000 engaged.
Tennessee
Returning to Virginia after Gettysburg, on August 7 the 1st Division (Alexander Schimmelfennig's) and then George Henry Gordon's was permanently detached, having been ordered to Charleston Harbor. On the September 24, the 2nd and 3rd divisions (Steinwehr's and Schurz's) were ordered to Tennessee, together with the XII Corps. These two corps, numbering over 20,000 men, were transported, within a week, over 1,200 miles, and placed on the banks of the Tennessee River, at Bridgeport, without an accident or detention.
During the following month, on October 29, Howard's two divisions were ordered to the support of the XII Corps, in the midnight Battle of Wauhatchie, opening the supply lines to the besieged city of Chattanooga. Arriving there, Col. Orland Smith's Brigade of von Steinwehr's Division charged up a steep hill in the face of the enemy, receiving but not returning the fire, and drove James Longstreet's veterans out of their entrenchments, using the bayonet alone. Some of the regiments in this affair suffered a severe loss, but their extraordinary gallantry won extravagant expressions of praise from various generals, high in rank, including General Ulysses S. Grant. A part of the XI Corps was also actively engaged at Missionary Ridge, where it cooperated with William T. Sherman's forces on the left. After this battle it was ordered to East Tennessee for the relief of Knoxville, a campaign whose hardships and privations exceeded anything within the previous experience of the command.
In April, 1864, the two divisions of the XI Corps were broken up and transferred to the newly formed XX Corps. General Howard was transferred to the command of the IV Corps, and, subsequently, was promoted to the command of the Army of the Tennessee.
Command history
| Franz Sigel | September 12, 1862 – January 10, 1863 | | Julius Stahel | January 10, 1863 – January 19, 1863 | | Carl Schurz | January 19, 1863 – February 5, 1863 | | Franz Sigel | February 5, 1863 – February 22, 1863 | | Adolph von Steinwehr | February 22, 1863 – March 5, 1863 | | Carl Schurz | March 5, 1863 – April 2, 1863 | | Oliver O. Howard | April 2, 1863 – July 1, 1863 | | Carl Schurz | July 1, 1863 – July 1, 1863 | | Oliver O. Howard | July 1, 1863 – September 25, 1863 | | * Oliver O. Howard | September 25, 1863 – January 21, 1864 | | * Carl Schurz | January 21, 1864 – February 25, 1864 | | * Oliver O. Howard | February 25, 1864 – April 10, 1864 |
* Corps assigned to the Army of the Cumberland; other entries assigned to the Army of the Potomac
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