1st Arkansas Cavalry Regiment (Union)
| 1st Arkansas Cavalry (Union) | |
|---|---|
| Active | July 1862–August 1865 | 
| Disbanded | August 1865 | 
| Country | United States | 
| Allegiance | Union | 
| Branch | Cavalry | 
| Garrison/HQ | Fayetteville, Arkansas | 
| Engagements | American Civil War | 
| Commanders | |
| Notable commanders  | Col. Marcus LaRue Harrison,Capt. Jacob Abraham Ryker | 
| Arkansas Union Regiments | ||||
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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.