Chicago Mercantile Independent Battery Light Artillery was an artillery battery that served in the Union Army during the American Civil War. The battery was organized in Camp Douglas, Chicago, Illinois and mustered in for a three year enlistment on August 29, 1862 under the command of Captain. Duty at Camp Douglass, near Chicago, Illinois, until November 8. Moved to Memphis, Tennessee, November 8-11, 1862. Grant's Central Mississippi Campaign November and. • Private - (1890–1894) and (1894–1898)• Quartermaster. • The battery lost a total of 18 men during service; 2 officers and 5 enlisted men killed or mortally wounded, 11 enlisted men died of disease. • Captain Charles G. Cooley - resigned February 24, 1863• Captain - taken prisoner April 8, 1864 • • • •.