Pat, there's no published regimental history of the 23rd Arkansas that I know of, but here's a brief sketch:
The 23rd Arkansas Infantry was organized at Memphis, Tennessee, on April 25, 1862, when Lieutenant-Colonel Charles W. Adams� infantry battalion of five companies was reinforced by the addition of the two companies of Major Simon P. Hughes� infantry battalion, and Captain Mitchell A. Adair�s independent company. All companies were mustered for twelve months� service. The regiment was reorganized �for three years or the war� at Camp Priceville, near Tupelo, Mississippi, on May 27, 1862, at which time Captain Thomas L. Westmoreland�s independent company was added, bringing the regiment up to full strength. The regiment reorganized again at Saltillo, Mississippi, on September 10, 1862, when the understrength 12th and 14th Arkansas Regiments were field-consolidated with the 23rd Arkansas Regiment.
The 23rd Arkansas was assigned to the Army of the West from April to September 1862, then to the Department of Mississippi and East Louisiana from September 1862 to July 1863. The regiment was engaged in the battle of Corinth, as well as the siege of Port Hudson. When the garrison of Port Hudson capitulated on July 9, 1863, the men were paroled and exchanged in Arkansas. There the 23rd Arkansas was reorganized as a mounted infantry regiment and spent the rest of the war in the Trans-Mississippi Department. Their most significant action after Port Hudson was Price�s Missouri Campaign in the Fall of 1864. The 23rd Arkansas surrendered at Wittsburg, Arkansas, on May 25, 1865.
The companies were from northeast Arkansas, except for the two companies (G & H) of Major Hughes� battalion, as follows�
Co. A�Poinsett County.
Co. B�Phillips County.
Co. C�St. Francis County.
Co. D�Crittenden County.
Co. E�Phillips County.
Co. F�Monroe County.
Co. G�Chicot County.
Co. H�Clark County.
Co. I�Craighead County.
Co. K�Poinsett County.
A new Company H, from Craighead County, was added after Port Hudson, to replace the Clark County company, which did not rejoin the regiment after being exchanged.