11 Massacres of the American Civil War

The Battle of Baxter Springs, more commonly known as the Baxter Springs Massacre, was a minor battle of the American Civil War fought on October 6, 1863, near the present-day town of Baxter Springs, Kansas.

The Battle of Fort Pillow, also known as the Fort Pillow massacre, was fought on April 12, 1864, at Fort Pillow on the Mississippi River in Henning, Tennessee, during the American Civil War. The battle ended with a massacre of Union soldiers attempting to surrender, by soldiers under the command of Confederate Major General Nathan Bedford Forrest. Military historian David J. Eicher concluded: "Fort Pillow marked one of the bleakest, saddest events of American military history."

The Gallinas massacre or the Gallinas Mountains massacre was an engagement of the Apache Wars on September 2, 1861, between a war party of Mescalero Apache warriors and four Confederate soldiers in the Gallinas Mountains of what is now Lincoln County, New Mexico. The incident occurred early in the American Civil War, at a time when the area was claimed by the Confederate States of America as part of Confederate Arizona and military control of the territory had not yet been decisively established by either Union or Confederate forces.

The Great Hanging at Gainesville was the execution by hanging of 41 suspected Unionists in Gainesville, Texas, in October 1862 during the American Civil War. Two additional suspects were shot by Confederate troops while trying to escape. Some 150–200 men were captured and arrested by state Confederate troops in and near Cooke County at a time when numerous citizens of North Texas were opposed to the new law on conscription. Many suspects were tried by a "Citizens' Court" organized by a Confederate officer. It made up its own rules for conviction and had no status under state law. Although only 11% of county households owned slaves, seven of the 12 men on the jury were slaveholders.

The Lawrence massacre, also known as Quantrill's raid, was an attack during the American Civil War (1861–65) by Quantrill's Raiders, a Confederate guerrilla group led by William Quantrill, on the Unionist town of Lawrence, Kansas, killing around 150 men and boys.

The Nueces Massacre, also known as the Massacre on the Nueces, was a violent confrontation between Confederate soldiers and German Texans on August 10, 1862, in Kinney County, Texas. Many first-generation immigrants from Germany settled in Central Texas in a region known as the Hill Country. They tended to support the Union and were opposed to the institution of slavery. Because of these sentiments, the Confederate States of America imposed martial law on Central Texas. A group of Germans, fleeing from the Hill Country to Mexico and onward after that to Union-controlled New Orleans, was confronted by a company of Confederate soldiers on the banks of the Nueces River. The ensuing German defeat represented an end to overt German resistance to Confederate governance in Texas, but it also fueled outrage among the German-Texan population. Disputes over the confrontation and the efficacy of Confederate actions after the battle, according to historian Stanley McGowen, continue to plague the Hill Country into the 21st century.

The Palmyra massacre is an incident that took place in Palmyra, Missouri on October 18, 1862, during the American Civil War, when ten Confederate prisoners of war were executed in reprisal for the abduction of a local Union supporter, Andrew Alsman. The officer who ordered the execution, Colonel John McNeil, was later known as the "Butcher of Palmyra". He left the army in 1865, after receiving the customary promotion to brevet rank of Major General of Volunteers in recognition of his faithful service to the Union.

The Battle of Poison Spring was fought in Ouachita County, Arkansas on April 18, 1864, as part of the Camden Expedition, during the American Civil War. A Union force commanded by Major General Frederick Steele had moved from Little Rock, Arkansas towards Shreveport, Louisiana in support of Major-General Nathaniel Banks' move up the Red River towards Shreveport. After Banks was defeated at the battles of Mansfield and Pleasant Hill, Steele was isolated in Arkansas. Short on supplies, Steele sent a detachment commanded by Colonel James M. Williams to search for supplies. Williams' column was attacked by Confederate troops under the command of Brigadiers General John S. Marmaduke and Samuel B. Maxey. After a sharp fight, Williams' command was routed, losing its wagon train and four cannons. The defeat at Poison Spring, as well as another defeat at the Battle of Marks' Mills a week later led Steele to decide to retreat back to Little Rock. The battle is infamous for the Confederates' slaughter and mutilation of African-American Union soldiers of the 1st Kansas Colored Infantry. Poison Springs Battleground State Park, which is part of the Camden Expedition Sites National Historic Landmark, preserves a portion of the site of the battle.

The Sand Creek massacre was a massacre of Cheyenne and Arapaho people by the U.S. Army in the American Indian Wars that occurred on November 29, 1864, when a 675-man force of the Third Colorado Cavalry under the command of U.S. Volunteers Colonel John Chivington attacked and destroyed a village of Cheyenne and Arapaho people in southeastern Colorado Territory, killing and mutilating an estimated 69 to over 600 Native American people. Chivington claimed 500 to 600 warriors were killed, however most sources estimate around 150 people were killed, about two-thirds of whom were women and children. The location has been designated the Sand Creek Massacre National Historic Site and is administered by the National Park Service. This was part of a series of events known as the Colorado War and was preceded by the Hungate massacre.

The Tonkawa massacre occurred after an attack at the Confederate held Wichita Agency, located at Fort Cobb near Anadarko in Oklahoma, when a force of pro-Union tribes attacked the agency, home to 300 members of the Tonkawa, a tribe sympathetic to the Confederacy. During the attack on the Confederate held agency, the Confederate Indian agent Matthew Leeper and several other whites were killed. In response to this attack the Tonkawa fled southward toward Confederate held Fort Arbuckle. However, before they could reach the safety of the fort they were caught on October 24. In the resulting massacre, the estimates of Tonkawa dead were 137 men, women and children, among them Chief Ha-shu-ka-na. It was claimed that the Tonkawa were roasted alive and eaten by the Comanche. There are varying accounts of the tribes involved in the massacre with the Osage, Shawnee, Caddo, Comanche, Kiowa, Wichita and Seminole being named in some accounts.