Coleman was born on November 27, 1833, one of three sons of Ready Benjamin and Margaret Anderson Chestnut to serve in Company F. Coleman was married to Frances Edge on November 4, 1858. The 1880 Horry County census shows him living in Conwayboro with Frances and seven children: Margaret, Jasper, Sarah, William, Mary, Victoria and Helen.
Coleman enlisted in Company A, Tucker's Cavalry on July 6, 1862. Assigned to Company B on April 8, 1863. Present sick as of July 17, 1862; on detail September 3, 1862; present or sick September 1862 - February 1864. Transferred to J.J. Steele's Cavalry Company per Special Order # 72/2 of Department of SC, GA and FL March 19, 1864; on detached service May - October 1864; absent as prisoner November - December 1864; company converted to D, 19 SC Cavalry Battalion December 15, 1864. Paroled at Appomattox, Virgina on April 10, 1865.
Coleman died on August 17, 1911 and is buried at Mountain Graveyard, Horry County, SC. Frances, also known as Fannie, was 81 in 1919 and had no income or property. She was living at Shell, Horry County, South Carolina.