Private A. M. Byrne, age 24, resident of Commerce, Tunica County, Mississippi, enlisted April 21, 1863 at Commerce/Panola, Mississippi in Company D, Chalmers' 1st Battalion, Mississippi Cavalry**, transferred to Captain Ranes [Raines?] Company K March 1864, recorded as on special duty at General Chalmers HQ from July 20, 1864, surrendered at Citronella, Alabama May 1865 and paroled at Gainesville, Alabama May 12, 1865

**This company subsequently became Company C, 18th Regiment Mississippi Cavalry. The 18th Battalion Mississippi Cavalry was also known as the 18th Battalion Mississippi Partisan Rangers

His parole document contains his physical description

You may procure his service records files at: http://history-sites.com/research/index.html