The 1st and 4th Missouri Infantry (Consolidated) was an infantry regiment that served in the Confederate States Army during the American Civil War. The regiment was formed on November 7, 1862 when the 1st Missouri Infantry and the 4th Missouri Infantry were consolidated as a result of heavy battle losses in both units. The regiment served in several battles in the 1863 Vicksburg campaign, including a charge that almost broke the Union line at the Battle of Champion Hill. When the Siege of Vicksburg ended with a Confederate surrender, the regiment was captured and later exchanged. In 1864, the regiment fought in the Atlanta campaign, and suffered heavy losses at the Battle of Franklin. On April 9, 1865, the regiment surrendered at the Battle of Fort Blakely, and was paroled in May when the