Sixth Wisconsin Light Battery. — Capts., Henry Dillon, Thomas R. Hood, James G. Simpson; First Lieuts., Henry Dillon, Samuel F. Clark, John Jenawein, Thomas R. Hood, Alba S. Sweet; Second Lieuts., John W. Fancher, James G. Simpson, Sylvester E. Sweet, Daniel T. Noyes, John Jenawein, Lucius N. Keller. This battery, known as the "Buena Vista Artillery," was organized at Lone Rock in Sept., 1861, but was transferred to Camp Utley, Racine, where it was mustered in Oct. 2, and left the state March 15, 1862. It reported at St. Louis, was ordered to New Madrid, and placed in charge of a battery during the siege of Island No. 10. It was in reserve during the siege of Corinth, but took part in the battle in October. It spent the winter in Tennessee, joined the movement toward Vicksburg in the spring of 1863, went to Helena and was sent out on several minor expeditions. It participated at Port Gibson; was in a sharp skirmish at Jones' cross-roads; was at the battle of Raymond in reserve ; took part in the battle of Jackson ; was engaged at Champion's hill, and was in the trenches before Vicksburg from May 19 until the surrender. It remained at Vicksburg until Sept. 12, then moved to Chattanooga and was in the battle at Missionary ridge. It was then on railroad guard duty until Jan. 7, 1864. It wintered at Huntsville, Ala., and spent the summer on the Etowah river near Cartersville, Ga., most of the time in Fort Etowah. On Nov. 10 it left for Nashville and joined the reserve battery at Fort Barry. On Jan. 7, 1865, it was transferred to the reserve garrison artillery. The men were armed with muskets on Jan. 16 and assigned to provost guard duty. On Feb. 17 it was sent to a permanent camp at Chattanooga and was mustered out at Madison July 18, 1865. Its original strength was 157. Gain by recruits, 82; substitutes, 2; reenlistments, 34; total, 275. Loss by death, 29; desertion, 5; transfer, 9; discharge, 36; mustered out, 196.