Pottawatomie massacre

John Brown was particularly affected by the sacking of Lawrence, in which the Douglas County Sheriff Samuel Jones on May 2 led a posse that destroyed the presses and type of the Kansas Free State and the Herald of Freedom, Kansas's two abolitionist newspapers, the fortified Free State Hotel, and the house of Charles Robinson. He was the free-state militia commander-in-chief and leader of the "free state" government, established in opposition to the "bogus" pro-slavery territorial government, based in Lecompton.

A Douglas County grand jury had ordered the attack because the hotel "had been used as a fortress" and an "arsenal" the previous winter, and the "seditious" newspapers were indicted because "they had urged the people to resist the enactments passed" by the territorial governor.[3] The violence against abolitionists was accompanied by celebrations in the pro-slavery press, with writers such as Dr. John H Stringfellow of the Squatter Sovereign proclaiming that pro-slavery forces "are determined to repel this Northern invasion and make Kansas a Slave State; though our rivers should be covered with the blood of their victims and the carcasses of the Abolitionists should be so numerous in the territory as to breed disease and sickness, we will not be deterred from our purpose."[4]^:162

Brown was outraged by both the violence of pro-slavery forces and by what he saw as a weak and cowardly response by the anti-slavery partisans and the Free State settlers, whom he described as "cowards, or worse".[4]^:163–166 In addition, two days before this massacre, Brown learned about the caning of abolitionist Charles Sumner by the pro-slavery Preston Brooks on the floor of Congress.[5]

A Free State company under the command of John Brown, Jr., set out, and the Osawatomie company joined them. On the morning of May 22, 1856, they heard of the sack of Lawrence and the arrest of Deitzler, Brown, and Jenkins. However, they continued their march toward Lawrence, not knowing whether their assistance might still be needed, and encamped that night near the Ottawa Creek. They remained in the vicinity until the afternoon of May 23, at which time they decided to return home.

On May 23, Sr. selected a party to go with him on a private expedition. Captain John Brown, Jr., objected to their leaving his company, but seeing that his father was obdurate, acquiesced, telling him to "do nothing rash." The company consisted of John Brown, four of his sons—Frederick, Owen, Salmon, and Oliver—Thomas Weiner, and James Townsley (who claimed he was forced by Brown to participate in the incident), whom John had induced to carry the party in his wagon to their proposed field of operations.

They encamped that night between two deep ravines on the edge of the timber, some distance to the right of the main traveled road. There they remained unobserved until the following evening of May 24. Some time after dark, the party left their place of hiding and proceeded on their "secret expedition". Late in the evening, they called at the house of James P. Doyle and ordered him and his two adult sons, William and Drury to go with them as prisoners. (Doyle's 16-year-old son, John, who was not a member of the pro-slavery Law and Order Party of Rhode Island, was spared after his mother pleaded for his life.) The three men were escorted by their captors out into the darkness, where Owen Brown and one of his brothers killed them with broadswords. John Brown, Sr. did not participate in the stabbing but fired a shot into the head of the fallen James Doyle to ensure he was dead.

Brown and his band then went to the house of Allen Wilkinson and ordered him out. He was slashed and stabbed to death by Henry Thompson and Theodore Winer, possibly with help from Brown's sons.[6] From there, they crossed the Pottawatomie, and some time after midnight, forced their way into the cabin of James Harris at swordpoint. Harris had three house guests: John S. Wightman, Jerome Glanville, and William Sherman, the brother of Henry Sherman ("Dutch Henry"), a militant pro-slavery activist. Glanville and Harris were taken outside for interrogation and asked whether they had threatened Free State settlers, aided Border Ruffians from Missouri, or participated in the sack of Lawrence. Satisfied with their answers, Brown's men let Glanville and Harris return to the cabin. William Sherman, however, was led to the edge of the creek and hacked to death with swords by Winer, Thompson, and Brown's sons.[7]

Having learned at Harris's cabin that "Dutch Henry", their main target in the expedition, was away from home on the prairie, they ended the expedition and returned to the ravine where they had previously encamped. They rejoined the Osawatomie company on the night of May 25.[8]

In the two years prior to the massacre, there had been eight killings in Kansas Territory attributable to slavery politics, and none in the vicinity of the massacre. Brown killed five in a single night, and the massacre was the match to the powder keg that precipitated the bloodiest period in "Bleeding Kansas" history, a three-month period of retaliatory raids and battles in which 29 people died.[9]

• James Doyle and his sons William and Drury
• Allen Wilkinson
• William Sherman

The Potawattomie massacre was called by William G. Cutler, author of the History of the State of Kansas (1883), the "crowning horror" of the whole Bleeding Kansas period. "The news of the horrid affair spread rapidly over the Territory, carrying with it a thrill of horror, such as the people, used as they had become to deeds of murder, had not felt before. ...The news of the event had a deeper significance than appeared in the abstract atrocity of the act itself. ...It meant that the policy of extermination or abject submission, so blatantly promulgated by the Pro-slavery press, and proclaimed by Pro-slavery speakers, had been adopted by their enemies, and was about to be enforced with appalling earnestness. It meant that there was a power opposed to the Pro-slavery aggressors, as cruel and unrelenting as themselves. It meant henceforth, swift retaliation—robbery for robbery—murder for murder— that "he who taketh the sword shall perish by the sword."[10]

In Kansas Territory, Brown's role in the massacre was no secret. A United States congressional committee investigating the troubles in Kansas Territory identified Brown as the chief perpetrator.[11] Nonetheless, following John Brown's raid on Harpers Ferry, there was widespread denial of Brown's involvement in the Eastern abolitionist press. Brown's first biographer, James Redpath, denied Brown's presence at the murders.

Defenders of Brown argue that the raid was in retaliation for their hanging of a free-state man, for the murder of Brown's brother, for the murder of one of Brown's sons and arrest of another, for the burning of the free-state settlement at Osawatomie, and for outrages upon Brown's wife and daughter, although critics dispute these events happened. The revisionist history around John Brown, much of it motivated by Lost Cause of the Confederacy ideology, has in turn been called into question.[12]

In response to those that argued the attack was motivated by the threats of violence by the pro-slavery targets of the attack, the governor of Kansas, Charles Robinson, stated:

When it is known that such threats were as plenty as blue-berries in June, on both sides, all over the Territory, and were regarded as of no more importance than the idle wind, this indictment will hardly justify midnight assassination of all pro-slavery men, whether making threats or not... Had all men been killed in Kansas who indulged in such threats, there would have been none left to bury the dead.[13]

John Brown was evasive about his role in the massacre, even after he was condemned to hang for his role in Harpers Ferry and when directly questioned about the incident.

• List of battles fought in Kansas
• List of incidents of civil unrest in the United States