Martin's-Howell's Battery was organized in May, 1862, with 125 officers and men. The unit served on the Georgia coast, then moved to Mississippi where it was engaged at Jackson. Later it was assigned to J. Palmer's and R. Martin's Battalion of Artillery, and took an active part in the campaigns of the Army of Tennessee from Chickamauga to Bentonville. Martin's Light Artillery, commanded by Capt. Robert Martin, saw service in Tennessee, north Mississippi and north Georgia. It bore itself gallantly on every field, being especially distinguished at Jackson, Miss., at Chickamauga and through the Atlanta campaign, in the last being known as Howell's battery, from its commander, Capt. Evan P. Howell, who succeeded Captain Martin.