Confederate government of Missouri
Meeting in Neosho, Missouri, Governor Jackson and other leading Missouri secessionists, acting as the Missouri General Assembly, enacted an ordinance of secession on October 28, 1861; however, the legal status of this ordinance was not accepted by Missouri's Union supporters, then or later. The secession government applied for and was granted admission to the Confederate States of America as the 12th state of the Confederacy. As a result of military operations, however, particularly the Battle of Pea Ridge in March 1862, the Confederate government of Missouri was not able to establish control over much of the state; its jurisdiction extended only as far as Confederate military strength could extend. Governor Jackson and his government were forced into exile. The exiled government established operations in Marshall, Texas as part of the Trans-Mississippi bloc of Southern civil governments.
Although Confederate supporters in Missouri were unable to make their secession good, the Southern government-in-exile sent legislators to the Congress of the Confederate States, and Missouri was represented by the twelfth star on the Confederate battle flag.
See also 
- Irby, Jr., Richard E. "A Concise History of the Flags of the Confederate States of America and the Sovereign State of Georgia". About North Georgia. Golden Ink. Retrieved 2006-11-29.