1st Regiment Arkansas Cavalry (Union)

The 1st Arkansas Cavalry Regiment (1862–1865) was a cavalry regiment from the state of Arkansas that served in the Union Army during the American Civil War.

1st Arkansas Cavalry (Union)
ActiveJuly 1862–August 1865
DisbandedAugust 1865
Country United States
Garrison/HQFayetteville, Arkansas
EngagementsAmerican Civil War
Col. Marcus LaRue Harrison
Arkansas Union Regiments
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4th Regiment Arkansas Volunteer Infantry 2nd Regiment Arkansas Volunteer Cavalry (Union)


Arkansas had seceded from the Union in April 1861 and joined the Confederate States of America, raising during the war a total of 48 infantry regiments, more than 30 cavalry regiments and another 25 cavalry battalions, and about 22 artillery batteries for the Confederate Army. Once Union forces had entered the state, however, pro-Union citizens (both black and white) volunteered for the Union Army to serve in 11 infantry regiments, 6 cavalry regiments and 2 artillery batteries.

The 1st Arkansas Cavalry was formed in Springfield, Missouri in July 1862.


It almost immediately moved south to Arkansas to counter the Confederate guerrillas who were harassing Union sympathizers. After the Union victory at the Battle of Pea Ridge, Union forces briefly occupied parts of Northern Arkansas. When they moved their headquarters to Independence County, Arkansas, Union supporters were once again left exposed, causing many to move to Missouri.

The regiment first saw combat in the Battle of Prairie Grove, fought on December 7, 1862. They performed very poorly. A Confederate surge sent two regiments of Missouri Union cavalry fleeing through the 1st Arkansas Cavalry. Seeing hundreds of their comrades fleeing, the Arkansas men joined in the rout. Because of its embarrassing performance, the regiment was assigned to duty in Fayetteville, Arkansas.

Confederate forces under Brigadier General William Lewis Cabell attacked the city on April 18, 1863. Both armies were composed entirely of Arkansas regiments. In three hours of fighting, the Confederates failed to break the Union lines and finally retreated. This victory boosted the 1st Arkansas's morale.[1] For the remainder of the war they would serve on duty against guerrillas or as escort for wagon supply trains.

The First Arkansas Union Cavalry played a unique role in Civil War history. The troops, especially the enlisted men, were not Yankees but Southern Unionists. They were primarily from Northwest Arkansas, and were assigned to occupy their home town and county for two and a half years. It was a very bitter war among neighbors fighting each other as Confederate guerrillas and as Union cavalrymen. After the war the First Arkansas commander, Colonel Marcus LaRue Harrison, stayed on in Fayetteville and became its post-war mayor for a time. [2]

Mustered out of service

The regiment was mustered out of the army in August 1865. During their service, their casualties had been comparatively light. Out of its 1,765 men, 110 had been killed, and another 235 died from disease or accidents.

See also


  1. Mahan, Russell, The Battle of Fayetteville; Historical Enterprises, Santa Clara, Utah, 2019.
  2. Mahan, Russell, The First Arkansas Union Cavalry, 1862-1865 Historical Enterprises, Santa Clara, Utagh, 2019.



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