Guibor's Battery was organized with men from the Missouri State Guard in February, 1862. After fighting at Elkhorn Tavern, the unit was ordered east of the Mississippi River. Here it saw action at luka and Corinth, then was assigned to Bowen's Brigade, Department of Mississippi and East Louisiana. It served throughout the Vicksburg siege and was captured in July, 1863. Exchanged and attached to G. S. Storrs' Battalion of Artillery, Army of Tennessee, the company took an active part in the Atlanta Campaign and Hood's Tennessee operations. It totaled 69 effectives in May, 1862, had 5 wounded at Corinth, and disbanded early in 1865. Captain Henry Guibor was in command.