John Brown’s Raid on Harpers Ferry That Ignited the Civil War

With tensions running high, John Brown lit a spark at Harpers Ferry that helped ignite the Civil War.

Published: Jun 22, 2026 written by Kassandre Dwyer, MEd History

John Brown captured beside john brown painting

 

John Brown was one of America’s most famous abolitionists. In 1859, he left his most impactful mark on America’s anti-slavery movement when he planned and led an attack that aimed to bolster the cause of freedom fighters throughout the country. The outcome of his raid changed not only his life, but set off a chain of events that changed life as thousands of Americans knew it. Despite his initiative, the road to quashing American slavery remained one that would require several more years, incredible bloodshed, and political maneuvering to reach fruition.

 

Who Was John Brown?

john brown statue in quindaro
A statue of John Brown in Quindaro Township in Kansas. Source: Smuckola/Wikimedia Commons

 

John Brown was born into an abolitionist family based in Connecticut in 1800. He spent much of his young life and early adulthood living in numerous states, including Ohio, Pennsylvania, Massachusetts, and New York.

 

In his adult years, Brown was a husband and a father who sired 20 children. He didn’t have much luck with any steady career and worked periodically as a farmer, merchant, land speculator, and tanner. Through it all, he remained dedicated to the cause of abolition, helping fugitive slaves via the Underground Railroad and League of Gileadites, which helped protect runaway slaves from hunters.

 

signed john brown portrait
A portrait signed by Brown. Source: Franklin Benjamin Sanborn/Wikimedia Commons

 

John Brown’s prominence in the abolitionist movement rose in the 1850s when he was a major player in “Bleeding Kansas,” a conflict in which bloodshed between pro- and anti-slavery groups was widespread. Kansas, in its quest to join the union, was split between those who believed that it should be a “free state” and those who wished to allow slavery. His older sons were heavily involved in their father’s cause and assisted Brown in forming guerrilla fighting groups. These men worked to persuade people to join their anti-slavery cause, and when that failed, they were not afraid to resort to violence.

 

In May of 1856, two people were killed by groups of pro-slavery men in an attack on the town of Lawrence, which was largely invested in the free state movement. Days later, Brown and his men attacked the town of Pottawatomie in retaliation, murdering five slavery supporters. More skirmishes followed, including one that resulted in the death of one of Brown’s sons, Frederick. Brown is quoted as saying, “I have only one death to die, and I will die fighting for this cause.” Whether he truly believed this or not, it would eventually come to pass.

 

What Was Harpers Ferry?

harpers ferry in 1859
Harpers Ferry in 1859. Source: Frank Leslie’s Illustrated News/Wikimedia Commons

 

Harpers Ferry, a town in Virginia (now West Virginia), was first settled in 1732. The actual ferry was established in 1761, making it a jumping-off point for settlers moving west into the Shenandoah Valley and beyond. Later, a train service was added.

 

In 1796, the federal government of the United States bought land in the town and constructed the US Armory and Arsenal at Harpers Ferry. Here, the government produced and stored muskets, rifles, and pistols for use by the military.

 

Over 600,000 firearms were produced at Harpers Ferry between 1801 and 1861. Today, the site is the location of a National Historical Park, but in John Brown’s era, it was a spot of the utmost strategic importance.

 

Whispers of Action

old john browns career
Old John Brown’s Career as published in the Philadelphia Weekly. Source: Iowa Historical Society via Wikimedia Commons

 

On May 8, 1858, John Brown gathered in Chatham, Ontario, Canada with numerous other prominent abolitionists. At this meeting, the group established a provisional Constitution and new ordinances for the citizens of the United States that denigrated and abolished slavery. The suggested Constitution called slavery “a most barbarous, unprovoked, and unjustifiable war of one portion of its [the United States’] citizens upon another …”

 

In addition to creating these new guidelines for America’s people, Brown had another purpose in gathering his compatriots. He hoped to seek support for his latest plan to physically free slaves in the southern United States. He envisioned a war of liberation, with an army that would include a growing number of freed slaves who would join its ranks as the war raged. As weeks passed, Brown further defined his plan. He would invade Virginia, gather weapons, and incite a slave rebellion. His plans were financed by “The Secret Six,” a group of wealthy New England abolitionists who supported his ideals.

 

gerrit smith ny residence
The home of Gerrit Smith, a Secret Six member who had previously assisted Brown’s efforts by providing him with land. Source: Wikimedia Commons

 

Franklin Sanborn was a 26-year-old schoolmaster and former secretary of the Massachusetts State Kansas Committee, a group dedicated to raising funds for Kansas’ pursuit of free-state status. He was taken by Brown’s ideas and recruited the five other members of the New England elite society to help fund the plan. Thomas Wentworth Higginson, Gerrit Smith, Reverend Theodore Parker, Dr. Samuel Gridley Howe, and George Luther Stearns rounded out the Secret Six. Though the group originally thought Brown’s attack plan was “desperate” and “inadequate,” they soon became excited about its potential.

 

The Raid

the secret six who helped brown
“The Secret Six” who were alleged to support Brown’s efforts. Source: Wikimedia Commons

 

By July, Brown was ready to put his plan into action. On July 3, he and two of his sons, Oliver and Owen, along with companion Jeremiah Anderson, arrived in Harpers Ferry and rented a farm under the alias Isaac Smith. Brown’s army of supporters began gathering at the farm as the summer progressed. The recruits stayed hidden in the attic during the day to prevent questions from nosy neighbors. To aid in their cover, Brown sent for his daughter and daughter-in-law to cook, do laundry, and make the household look like a normal one.

 

Brown and his men continued to prepare, studying maps, conferring with locals about information like train schedules and the workings of the town, and ironing out a final plan. On Sunday, October 16, Brown was ready to put his scheme into play. He gathered his 19 men, led them in prayer, and ensured that they were up to date on their plan of action. At 8:00 PM, the group headed to the armory.

 

Two enslavers were taken hostage and their slaves were freed. A free African American man working for the Baltimore & Ohio Railroad was shot during the raid as he tried to see why the train was delayed (it was forced to stop at a bridge the group had taken). Armory employees were taken hostage as they arrived for work on October 17th, and Brown’s men began exchanging fire with the local townspeople who had discovered what was afoot.

 

The militia soon arrived to join the fracas and were largely supported by citizens of the town. By 11:00 PM, Colonel Robert E. Lee arrived with 90 marines. A storming party of marines put a stop to the raid on the morning of October 18th. In total, 16 were killed in the attack on Harpers Ferry, including 10 of Brown’s raiders.

 

John Brown’s Last Days

john brown on trial
The trial of John Brown, at Charles Town, Virginia, for treason and murder, sketched by Porte Crayon by David Hunter Strother, 1859. Source: Wikimedia Commons

 

Of the men that remained after the dead were counted, some of Brown’s raiders escaped. Three, including Brown, were captured, arrested, and brought to trial, which was held in Charleston, Virginia. At the conclusion of the week-long trial, Brown was found guilty of murder, treason, and inciting a slave insurrection. He was sentenced to die, and one month later, was hanged.

 

Henry David Thoreau, acclaimed writer and admirer of Brown, wrote “The Last Days of John Brown” and read the piece at his memorial service. However, Brown’s death did not mark the end of the cause he dedicated his life to rectifying.

 

The Legacy

wounded john brown interrogated
A wounded John Brown is interrogated after his arrest. Source: West Virginia Culture via Wikimedia Commons

 

A newspaper of the time published an editorial stating, “The Harpers Ferry invasion has advanced the cause of disunion more than any other event that has happened since the formation of the government.” Though the Civil War had numerous inciting factors, this article would prove prophetic.

 

Statements that Brown made during his trial spread like wildfire throughout the nation and brought increasing attention to the cause and actions of the American abolition movement. He became a martyr in some circles as a result, deepening the divisions among American citizens that led to the dawn of the Civil War just over a year later in 1861. The notable Frederick Douglass later wrote of Brown, “Did John Brown fail? John Brown began the war that ended American slavery and made this a free republic.”

 

john brown painting by curry
John Brown by John Steuart Curry. Source: Wikimedia Commons

 

Though Harpers Ferry was the end of John Brown’s lifetime of anti-slavery efforts, it was far from the conclusion of the cause he was fighting for. The raid on Harpers Ferry was consequential as tensions in America grew and evolved, becoming a legacy—not only that of John Brown but of a tumultuous chapter of American history.

FAQs

photo of Kassandre Dwyer
Kassandre DwyerMEd History

Kassie is a farmer and freelance writer with a passion for history and teaching others about it. A National Board Certified Teacher, she holds a MEd in History, a MEd in Curriculum & Instruction, and a BS in Sustainable Agriculture & Animal Science. She is particularly interested in the ability of history stories to teach empathy to the next generation, and telling the stories of often overlooked historical perspectives or hidden truths. Kassie has special interests in the history of America’s Indigenous peoples, war, maritime history, and the “wild west.”