Organized with 17th Wisconsin Infantry at Madison, Wis., February 22, 1862.
Transferred to 1st Illinois Light Artillery as Battery L February, 1862.
(See Battery L, 1st Illinois Light Artillery.)
12th Wisconsin Independent Battery Light Artillery
Organized at St. Louis, Mo., under authority of Governor Harvey, as a Company for the 1st Missouri Light Artillery, to be known as the 12th Wisconsin Battery February and March, 1862.
Moved to Hamburg Landing, Tenn., May 6, 1862.
Attached to Artillery Division, Army of Mississippi, to September, 1862.
Artillery, 3rd Division, Army of Mississippi, to November, 1862.
Artillery, 7th Division, Left Wing, 13th Army Corps (Old), Dept. of the Tennessee, to December, 1862.
Artillery, 7th Division, 16th Army Corps, to January, 1863.
Artillery, 7th Division, 17th Army Corps, to September, 1863.
Artillery, 2nd Division, 17th Army Corps, to December, 1863.
Artillery, 3rd Division, 15th Army Corps, to Sep