Volume 9

Volume 9 covers November 1861 and the dramatic leadership changes within the Union command in Missouri. Much of the discussion centers on the removal of Major General John C. Fremont from command of the Western Department. Although Fremont relinquished command on November 2 and was replaced by Major General David Hunter, the controversy surrounding his removal continued to dominate public debate. Articles examine the report of Adjutant General Lorenzo Thomas, which criticized Fremont's administration and spending practices, while numerous editorials and letters challenge the report and defend the former commander. The debate reflects the deep political divisions surrounding the Union war effort in Missouri.

Meanwhile, the Union command structure continued to evolve. Lieutenant General Winfield Scott retired and Major General George B. McClellan assumed overall command of the U.S. Army, while Major General Henry W. Halleck later took charge of the newly created Department of the Missouri. Halleck quickly introduced stricter discipline and administrative reforms as Union forces reorganized. The volume also documents ongoing military operations in the region, including the Battle of Belmont and further reports on earlier engagements such as Wilson's Creek and Fredericktown. Together these developments illustrate the continued military and political struggle to secure Missouri for the Union.