Alfred Pleasonton (June 7, 1824 – February 17, 1897) was a United States Army officer and major general of volunteers in the Union cavalry during the American Civil War. He commanded the Cavalry Corps of the Army of the Potomac during the Gettysburg campaign, including the largest predominantly cavalry battle of the war, Brandy Station. In 1864, he was transferred to the Trans-Mississippi theater, where he defeated Confederate General Sterling Price in two key battles, including the Battle of Mine Creek, the second largest cavalry battle of the war, effectively ending the war in Missouri. He was the son of Stephen Pleasonton and the younger brother of Augustus Pleasonton.
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👉 Alfred Pleasonton in the context of Kansas in the American Civil War
At the outbreak of the American Civil War in April 1861, Kansas was the newest U.S. state, admitted just months earlier in January. The state had formally rejected slavery by popular vote and vowed to fight on the side of the Union, though ideological divisions with neighboring Missouri, a slave state, had led to violent conflict in previous years and persisted for the duration of the war.
While Kansas was a rural frontier state, distant from the major theaters of war, and its Unionist government was never seriously threatened by Confederate military forces, several engagements did occur within its borders, as well as countless raids and skirmishes between local irregulars, including the Lawrence Massacre by pro-Confederate guerrillas under William Quantrill in August 1863. Later the state witnessed the defeat of Confederate General Sterling Price by Union General Alfred Pleasonton at the Battle of Mine Creek, the second-largest cavalry action of the war. Additionally, some of the Union's first Black regiments would form in the state of Kansas. These contributions would inform the complicated race relations in the state during the reconstruction era (1865–1877).
In this Dossier
Alfred Pleasonton in the context of Battle of Brandy Station
The Battle of Brandy Station, also called the Battle of Fleetwood Hill, was the largest predominantly cavalry engagement of the American Civil War, as well as the largest ever to take place on American soil. It was fought on June 9, 1863, around Brandy Station, Virginia, at the beginning of the Gettysburg campaign by the Union cavalry under Maj. Gen. Alfred Pleasonton against Maj. Gen. J. E. B. Stuart's Confederate cavalry.
Union commander Pleasonton launched a surprise dawn attack on Stuart's cavalry at Brandy Station. After an all-day fight in which fortunes changed repeatedly, the Federals retired without discovering Gen. Robert E. Lee's infantry camped near Culpeper. This battle marked the end of the Confederate cavalry's dominance in the East. From this point in the war, the Federal cavalry gained strength and confidence.
Alfred Pleasonton in the context of George Armstrong Custer
George Armstrong Custer (December 5, 1839 – June 25, 1876) was a United States Army officer and cavalry commander in the American Civil War and the American Indian Wars.
Custer graduated from the United States Military Academy at West Point, New York, last in his graduating class of 1861 (34th out of a starting class of 108 candidates, 68 passing the entrance exam, of whom 34 graduated). Nonetheless, Custer achieved a higher military rank than any other U.S. Army officer in his class. Following graduation, he worked closely with future Union Army Generals George B. McClellan and Alfred Pleasonton, both of whom recognized his abilities as a cavalry leader. He was promoted in the early American Civil War (1861–1865), to brevet brigadier general of volunteers when only aged 23. Only a few days afterwards, he fought at the pivotal Battle of Gettysburg in Pennsylvania in early July 1863, where he commanded the Michigan Brigade. Despite being outnumbered, the new General Custer defeated Confederate States Army cavalry of General J. E. B. Stuart's attack at East Cavalry Field on the crucial third day of the Gettysburg clash.