The battery was mustered into service in December 1862 and assigned to guard duty in Kentucky.

In July 1863, the battery helped capture John Hunt Morgan's raiders at Buffington Island and Salineville.

It spent the rest of the war on garrison in east Tennessee before being mustered out of service in July 1865.

Henshaw's Battery organized at Ottawa, Illinois and mustered into federal service on 3 December 1862.

The non-coms were from Brookfield, Bruce, Columbus, Deer Park, Freedom, Hennepin, Morris, and Vienna, Illinois.

Private Charles C. Sutphin was promoted first lieutenant in the 3rd North Carolina Mounted Infantry on 13 March 1865.

Private Isaac M. Southard was promoted second lieutenant in the 1st United States Colored Heavy Artillery Regiment.

Private Hugh Turney was killed near La Grange, Kentucky on 4 August 1863 while guarding the Louisville and Nashville Railroad.

Sergeant Robert M. Carr and Corporal Patrick O'Connor died of disease at Ottawa on 31 January and 10 February 1863.

[2] At the Siege of Knoxville in December 1863, Henshaw's battery consisted of two 3.8-inch James rifles and four M1841 6-pounder field guns.