Edward McAllister's Battery "D", 1st Illinois Light Artillery Regiment was armed with three cast iron 24-pounder howitzers at the Battle of Fort Donelson during which two of the guns were disabled. The battery was re-equipped with four bronze 24-pounder howitzers before the Battle of Shiloh in April 1862. Frederick Welker's Battery H, 1st Missouri Light Artillery Regiment was armed with two 24-pounder howitzers at the Second Battle of Corinth in October 1862. On 30 June 1863, the Union Army of the Cumberland had two 24-pounder howitzers out of 220 artillery pieces while the Army of the Ohio had four out of 72. Near Richmond, Virginia, Battery L, 1st Connecticut Heavy Artillery Regiment defended a redoubt with one 24-pounder howitzer and two M1844 32-pounder howitzers. In June 1864, the position was attacked by the 22nd South Carolina Infantry Regiment which was repulsed with 17 men killed. Another 23 men surrendered rather than trying to retreat under fire.