^Records of the number of individuals who served in theUnited 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 inUnited States Navy orUnited 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 atMobile, Alabama, andColumbus, Georgia, also had already surrendered on April 14, 1865, and April 16, 1865, respectively. U.S. and Confederate units fought abattle at Columbus, Georgia, before the surrender on April 16, 1865, and a small final battle atPalmito Ranch, Texas, on May 12, 1865. In areas more distant from the main theaters of operations, Confederate forces in Alabama and Mississippi underLieutenant GeneralRichard Taylor, in Arkansas underBrigadier GeneralM. Jeff Thompson, in Louisiana and Texas under GeneralE. Kirby Smith and inIndian Territory under Brigadier GeneralStand Watie surrendered on May 4, 1865, May 12, 1865, May 26, 1865 (officially June 2, 1865), and June 28, 1865, respectively.