Battle of Kernstown
DateMarch 23, 1862
LocationFrederick County and Winchester, virginia
United StatesConfederacy
Colonel Nathan KimballMajor General Thomas J. “Stonewall” Jackson
574 (118 killed, 450 wounded, and 22 captured/missing> 737 (139 killed, 312 wounded, and 286 captured/missing)

Kernstown, Battle of


The Battle of Kernstown on March 23, 1862, set the stage for Thomas J. “Stonewall” Jackson‘s successful Shenandoah Valley Campaign of 1862 during the American Civil War (1861–1865). While a tactical defeat for the Confederates, and Jackson’s only loss, the battle nevertheless was an important strategic victory. In order to deal with Confederates in the Shenandoah Valley, the Fifth Corps of Union general Nathaniel P. Banks was forced to stray even farther away from the bulk of the Army of the Potomac, which was advancing up the Peninsula and threatening the Confederate capital at Richmond. Jackson’s pugnacious actions also contributed to U.S. president Abraham Lincoln‘s anxieties that Confederates might swarm out of the Valley and strike at Washington, D.C. Finally, the battle provided a compelling example of Jackson at his most inflexible and quarrelsome: when his subordinate, the popular Confederate general Richard B. Garnett, withdrew his troops without explicit orders, Jackson had him arrested.


In March 1862, 38,000 Union soldiers under Banks advanced into the northern, Shenandoah Valley to prepare to move south to support the planned campaign of Union general George B. McClellan of the Peninsula in an attempt to take Richmond. Confronted by overwhelming numbers, Stonewall Jackson, the Confederate commander in the Valley, withdrew his force south from Winchester to Strasburg on March 11, but searched for an opportunity to engage the Union troops. On March 18, Union general Nathaniel P. Banks sent a division under Irish-born general James Shields after Jackson. Failing to engage Jackson, the Union troops retired to Winchester on March 20. Jackson set off after the Union troops on March 22. His cavalry, under Colonel Turner Ashby, engaged the Union forces, and in the skirmish an artillery shell wounded Shields. Colonel Nathan Kimball assumed command. Acting on the assumption that his forces outnumbered the Union troops, Jackson pushed his cavalry into taking the offensive against the enemy outside Winchester, near Kernstown, the following day. Jackson, however, had underestimated the Union force; at Kernstown his 3,500 Confederates would fight against 6,352 Union troops. Kimball, likewise, misjudged his enemy; he believed that he faced only Jackson’s cavalry. These distorted understandings of the operational situation led to a confused brawl of a battle.

The Battle

Playing Card of Brigadier General Richard B. Garnett

Jackson’s cavalry under Ashby opened the fight around nine o’clock on the morning of March 23. Kimball initially thought the attack was another cavalry probe, but nonetheless he began to concentrate his forces on Pritchard Hill, an eminence that served as an outstanding defensive position. This prudent move provided Union troops with a strong rallying point, as well as a strong position for their artillery. In an effort to silence the Union guns, Jackson initially deployed artillery, including the Rockbridge Artillery, on Sandy Ridge, a second hill to the west of Pritchard Hill. Jackson visited the emplacements at about three thirty and discovered that what he had previously thought to be a Union force of manageable size was instead an entire division. According to Alexander “Sandie” Pendleton, an aide to Jackson at the time, the general looked at the men in blue arrayed against him and remarked, “We are in for it.”

Instead of launching his assault as planned, Jackson concentrated his infantry around his guns on Sandy Ridge, including the Stonewall Brigade, commanded by Brigadier General Richard B. Garnett. Conversely, Kimball, harassed by the fire of the Rockbridge Artillery and believing that Jackson outnumbered his forces, launched an assault on Sandy Ridge in an attempt to silence the offending battery. At four o’clock, his infantry encountered the Stonewall Brigade and sharp fighting broke out. The Confederates enjoyed a strong position, posted behind a stone wall that ran across Sandy Ridge. As the fight wore on, Jackson kept sending in more troops, but he only managed to hold the line.

By four thirty, the situation on Sandy Ridge had stabilized into a stalemate, but Kimball still possessed reserves he could feed into the fight. By six o’clock, the majority of Confederate troops in position behind the stone wall had run out of ammunition and suffered greatly from exhaustion. Observing more Union troops arriving, Garnett gave the order for the Confederates to withdraw while they still might be able to retreat in good order. As Garnett’s men fell back, other Confederate infantry farther down the line also began to retreat. The orderly retreat turned into a pell-mell flight for some Confederates, and nightfall ended the fighting for the day.


Initially, the Union troops pursued Jackson’s retreating men, coming into contact with the rear guard on March 24. Banks rushed to the site of the battle and directed the operations. Despite these early efforts, Banks soon became content to await further developments rather than take a more active role. Jackson, accordingly, withdrew up the Valley and licked his wounds. He also arrested Garnett for his retreat from the stone wall, claiming that Garnett had neglected his duty by withdrawing without orders. Jackson, ever the staunch disciplinarian, could not brook any usurpation of what he perceived as his authority. Jackson’s spurious charges contributed to a decline in morale among the men, especially those of the Stonewall Brigade. The Virginians had great affection for Garnett and viewed his arrest as unfair. Garnett requested a court-martial to address Jackson’s charges against him. It convened briefly in August, but was suspended due to active campaigning; Robert E. Lee restored Garnett to duty, and the charges were not resolved before Garnett’s death during Pickett’s Charge at the Battle of Gettysburg in July 1863.

On April 3, Banks and his corps received a command independent of the Army of the Potomac, which disrupted McClellan’s plans to march up the Peninsula and on to Richmond. This move created further acrimony between Lincoln and McClellan, and indicated the growing importance the Valley held in Lincoln’s strategic thinking.

March 11, 1862
Confederate general Thomas J. "Stonewall" Jackson evacuates Winchester.
March 18, 1862
Union general Nathaniel P. Banks sends the Fifth Corps division of James Shields up the Shenandoah Valley toward Strasburg to verify whether Confederate general Thomas J. "Stonewall" Jackson has withdrawn his forces from Winchester as reported.
March 20, 1862
Union general James Shields, convinced that Confederate general Thomas J. "Stonewall" Jackson has withdrawn for good, returns his force to Winchester.
March 22, 1862
Confederate general Thomas J. "Stonewall" Jackson sets off after Union general James Shields in an attempt to liberate the recently taken Shenandoah Valley town of Winchester.
March 22, 1862, 2 p.m.
Confederate cavalry under Colonel Turner Ashby skirmishes with Union troops near Winchester.
March 22, 1862, late afternoon
A shell fragment breaks the arm of Union general James Shields during a skirmish with Confederate cavalry under Colonel Turner Ashby. Shields turns his command over to Colonel Nathan Kimball.
March 23, 1862, 9 a.m.
Confederate cavalry under Colonel Turner Ashby open the Battle of Kernstown. Union colonel Nathan Kimball, thinking the attack merely another cavalry probe, begins to concentrate his forces on Pritchard Hill.
March 23, 1862, 4 p.m.
At the Battle of Kernstown, outnumbered Confederate forces under Thomas J. "Stonewall" Jackson, including the Stonewall Brigade, concentrate around their artillery and behind a stone wall on Sandy Ridge. Union forces under Colonel Nathan Kimball attack them there.
March 23, 1862, 4:30 p.m.
At the Battle of Kernstown, the fighting on Sandy Ridge between Union forces under Colonel Nathan Kimball and outnumbered Confederates under Thomas J. "Stonewall" Jackson reaches a stalemate, but Union reinforcements continue to arrive.
March 23, 1862, 6 p.m.
Exhausted and running out of ammunition, Confederate troops along Sandy Ridge begin to withdraw at the Battle of Kernstown. Stonewall Brigade commander Richard B. Garnett issues the orders, which were a prudent course of action, but they enrage Confederate general Thomas J. "Stonewall" Jackson, who had not ordered the movement.
March 23, 1862, nightfall
The Battle of Kernstown ends in a Confederate defeat, the only such setback in the career of Confederate general Thomas J. "Stonewall" Jackson.
March 24, 1862
Union troops pursue forces under Confederate general Thomas J. "Stonewall" Jackson, but only cautiously and half-heartedly.
April 1, 1862
Union general George B. McClellan begins his Peninsula Campaign, an attempt to take the Confederate capital at Richmond from the southeast.
April 3, 1862
President Abraham Lincoln, anxious about Thomas J. "Stonewall" Jackson's Confederate forces in the Shenandoah Valley, removes the Fifth Corps and Nathaniel P. Banks from the Army of the Potomac and establishes them in the newly created Department of the Shenandoah.
  • Cozzens, Peter. Shenandoah 1862: Stonewall Jackson’s Valley Campaign. Chapel Hill: University of North Carolina Press, 2008.
  • Ecelbarger, Gary L. “We Are In For It!” The First Battle of Kernstown, March 23, 1862. Shippensburg, Pennsylvania: White Mane, 1997.
  • Reidenbaugh, Lowell. Jackson’s Valley Campaign: The Battle of Kernstown. Lynchburg, Virginia: H. E. Howard, 1996.
APA Citation:
Singel, Kati. Kernstown, Battle of. (2020, December 07). In Encyclopedia Virginia.
MLA Citation:
Singel, Kati. "Kernstown, Battle of" Encyclopedia Virginia. Virginia Humanities, (07 Dec. 2020). Web. 20 Feb. 2024
Last updated: 2021, February 12
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