The Battle of Wilson's Creek, 1861

August 10, 1861

Fought on August 10, 1861, the Battle of Wilson's Creek was the first major Civil War battle fought west of the Mississippi River and the scene of the death of Nathaniel Lyon, the first Union general killed in combat.

Portrait of Nathaniel Lyon

During the Battle of Wilson’s Creek, Confederate soldiers killed the Union commander, Brigadier General Nathaniel Lyon. [Wikimedia Commons]



Tenuous Neutrality in Missouri

When the American Civil War began, sympathies in the border state of Missouri were greatly divided. Although many Missourians favored remaining in the Union, Governor Claiborne Jackson was a strong proponent of secession. Despite his secessionist leanings, Jackson declared his support for the Union and affirmed Missouri’s neutrality by agreeing to terms of the Price-Harney Truce on May 12, 1861.

Lyon and Price Fight for Control of Missouri

When President Abraham Lincoln requested 75,000 troops from Missouri to take up arms against the Confederacy, Jackson withdrew his support for neutrality. A subsequent meeting between Jackson and Union Brigadier General Nathaniel Lyon failed to resolve the matter. Instead, Lyon’s Army of the West and the Missouri State Guard, commanded by former Missouri Governor Sterling Price, engaged in a series of minor battles during the summer of 1861 for control of the state.

McCulloch Takes Command of Confederate Forces in Missouri

By mid-June, after the Battle of Boonville, Lyon’s army had driven Price’s forces into the southwestern corner of Missouri, where they received reinforcements from other southern states. Brigadier General Ben McCulloch commanded the newly formed, combined Confederate force.

Lyon Takes the Offensive

Rather than stand by and watch McCulloch’s army continue to grow, Lyon determined to go on the offensive. On August 9, 1861, he led approximately 5,400 Union soldiers out of Springfield, Missouri to assault over 11,000 Confederates encamped near Wilson’s Creek, approximately twelve miles southwest of the city.


August 10, 1861 – Surprise Attack Near Wilson’s Creek

Lyon’s surprise attack, on the morning of August 10, caught the Confederates off guard. The Federals initially drove the Confederates back, but the Southerners eventually formed battle lines and halted the Union advance.

Federals Withdraw Following Lyon’s death

The Confederates launched three counterattacks during the day, but despite being outnumbered over two-to-one, the Federals held their ground. During the battle, Confederates killed Lyon and Major Samuel D. Sturgis took command of the Union army. As the day progressed, the exhausted Federals ran low on ammunition, so Sturgis ordered a retreat to Springfield. The exhausted Confederates did not pursue.


Casualties at the Battle of Wilson’s Creek were fairly even. The Union army suffered approximately 1,300 casualties, including 285 killed. The Confederate army suffered about 1,200 casualties, including 277 killed.


The Confederate victory at the Battle of Wilson’s Creek buoyed secessionist sympathies in Missouri and emboldened the Confederates to launch an offensive to regain control of northern Missouri. Secessionists formed a government and formally joined the Confederate cause, but they failed to garner the support of most Missourians. After Union victories at the Battle of Fredericktown (October 21, 1861) and the Battle of Springfield (October 25, 1861), Jackson, Price, and their unofficial Confederate government abandoned the state.


Citation Information

The following information is provided for citations.

  • Article Title The Battle of Wilson's Creek, 1861
  • Date August 10, 1861
  • Author
  • Keywords Civil War, Battle of Wilson's Creek
  • Website Name American History Central
  • Access Date May 31, 2023
  • Publisher R.Squared Communications, LLC
  • Original Published Date
  • Date of Last Update April 25, 2023

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