The 1st Arkansas Light Artillery, originally known as the Fort Smith Artillery (1861), was a Confederate artillery battery that served during the American Civil War. The unit was actually a pre-war volunteer militia company which was activated as part of the Arkansas State Troops and mustered out of state service following the Battle of Wilson's Creek. The unit immediately re-organized and re-enlisted for Confederate service. The unit spent the majority of the war in the western theater, fighting as part of the Confederate Army of Tennessee. The unit is also known as Reid's Battery, Provence's Battery, Humphreys' Battery and finally Rivers' Battery,.