Guard boats and supplies for Sully's Northwestern Indian Expedition up the Missouri River till August.

The regiment was mustered into the United States service, October 18, 1862, at Camp Randall, near Madison, Wisconsin.

On May 2, 1863, companies D, F, I and K, under command of Lieutenant Colonel Bartlett, were ordered to the upper Missouri River, to support the Indian expedition under General Alfred Sully.

On the May 26, companies G and E left Camp Randall, the former for Superior, Wis., and the latter for Bayfield, Wisconsin, in anticipation of trouble with the Indians at these points.

The remaining companies, at various times, were sent to various parts of the state to maintain order during the enrollment and draft, under the Conscription Act.

Orrin C. Hall, the First Sergeant of Company I, was killed in action during a skirmish with Sioux warriors near Fort Union on April 27, 1865.

Companies A, C, F and H, commanded by Colonel Dill, left Fort Rice, Dakota, Friday, October 12, 1864, and descending the Missouri river in flat boats built by themselves, arrived November 2, 1864, at Sioux City, Iowa, where they were joined by Company D, under command of Lieutenant Lewis O. Marshall, Captain David С. Fulton having been promoted Major of the 1st Wisconsin Heavy Artillery Battalion on October 14.

Companies B, E, G and K, under command of Major Clowney, left Fort Wadsworth, Dakota Territory, on the September 29, 1864, en route for Fort Snelling, Minn., where they arrived on the October 20, having marched upwards of four hundred miles in twenty days, making an average of 20½ miles per day.

They left St. Louis on the October 29, and arrived the next day at Paducah, Kentucky, at the mouth of the Tennessee River.

On the December 12, 1864, the nine companies of the Thirtieth left Louisville by rail, and next day went into camp at Bowling Green, Kentucky.

On the 10th of January 10, 1865, the Regiment left Bowling green for Louisville, arriving on the 12th, where they were assigned to duty as guard to the military prison in that city.

On the February 8, 1865, Companies B, E and G, under command of Major Clowney, proceeded by rail to Frankfort, Kentucky, sixty five miles from Louisville, under orders to assume the duties of permanent garrison of that city.

Company B, on the March 30, moved from Frankfort to Georgetown, Kentucky, near which they were stationed as garrison, under command of Lieutenant William H. Gill.