^Records of the number of individuals who served in the United States Army are more extensive and reliable, but still are not entirely accurate. Estimates of the number of individual Union soldiers range between 1,550,000 and 2,400,000, with a number between 2,000,000 and 2,200,000 most likely. Union Army records show slightly more than 2,677,000 enlistments but this number apparently includes many re-enlistments. These numbers do not include sailors who served in United States Navy or United States Marine Corps. These figures represent the total number of individual soldiers who served at any time during the war, not the size of the army at any given date.
^Albert Burton Moore, Conscription and Conflict in the Confederacy (1924).
^In comparison, the best estimates of the number of deaths of United States soldiers are 110,100 killed or mortally wounded in battle, 224,580 deaths from disease and 30,192 deaths in Confederate prison camps, although some historians also dispute these figures. The best conjecture for United States Army wounded is 275,175.
^Confederate forces at Mobile, Alabama, and Columbus, Georgia, also had already surrendered on April 14, 1865, and April 16, 1865, respectively. U.S. and Confederate units fought a battle at Columbus, Georgia, before the surrender on April 16, 1865, and a small final battle at Palmito Ranch, Texas, on May 12, 1865. In areas more distant from the main theaters of operations, Confederate forces in Alabama and Mississippi under Lieutenant GeneralRichard Taylor, in Arkansas under Brigadier GeneralM. Jeff Thompson, in Louisiana and Texas under General E. Kirby Smith and in Indian Territory under Brigadier General Stand Watie surrendered on May 4, 1865, May 12, 1865, May 26, 1865 (officially June 2, 1865), and June 28, 1865, respectively.
