Missouri 3rd Light Artillery (Confederate) also know as McDonald's Missouri Battery as well as Dawson's Missouri Battery. Fought at siege of Corinth.
"After participating in the Siege of Vicksburg, the battery was captured on July 4, 1863 and was paroled and exchanged. The battery was then consolidated with the Jackson Missouri Battery; the 3rd Light Battery designation was continued. In early 1864, the battery received replacement cannons and was assigned to the defense of Mobile Bay. The 3rd Light Battery saw action at the Battle of Spanish Fort in March and April 1865. When the Confederate Department of Alabama, Mississippi, and East Louisiana surrendered on May 4, 1865, the battery was again captured; the men of the battery were paroled on May 10, ending their military service."

In February 1864, the battery received replacement cannons in the form of four 20-pounder Parrott rifles. For much of the rest of 1864, the battery guarded a portion of Mobile Bay, at one point firing at a Union Navy gunboat.[16] Captain Dawson died of illness on March 26; Captain Schuyler Lowe, former commander of the Jackson Missouri Battery, replaced Dawson.[17] In March and April 1865, the battery fought at the Battle of Spanish Fort. During the Mobile Campaign, the 3rd Light Battery fired an estimated 700 shots. After the Confederate forces left Mobile, the battery was sent to Meridian, Mississippi, where it remained until Lieutenant General Richard Taylor surrendered the Confederate Department of Alabama, Mississippi, and East Louisiana on May 4, 1865. The men of the battery were paroled on May 10.
McGhee, James E. (2008). Guide to Missouri Confederate Regiments, 1861–1865. Fayetteville, Arkansas: University of Arkansas Press. ISBN 978-1-55728-870-7. pg. 16-21.

JJR