Historical notes and Reports:

Source: The Union Army, vol. 4, p. 52
Twelfth Infantry, Wisconsin, 3 years

Twelfth Infanty.- Cols., George E. Bryant, James K. Proudfit; Lieut.-Cols., DeWitt C. Poole, James K. Proudfit, William E. Strong;Majs., William E. Strong, John M. Price Carlton B. Wheelock.

  This regiment, known as the ''Marching Twelfth,'' was organized in Oct., 1861, at Camp Randall and left the state Jan. 11, 1862. The regiment was one of those selected for the New Mexico expedition, and did much hard marching for raw soldiers, but the expedition was abandoned.
  It was sent to Columbus Ky., to repair railroads and rebuild bridges and from there to Humboldt, Tenn., from which point it made numerous brilliant expeditions, clearing the country of guerrillas and bridge-burners. In the fall of 1862 it was sent south with the Army of the Mississippi engaging in numerous skirmishes, notably at Hernando, Miss., and the Coldwater River.
  It was engaged in the investment of Vicksburg, with small loss; was at the second battle of Jackson, and at Big Shanty where it charged 2 miles through the timber, capturing the first skirmish line of the enemy and dislodging a brigade from the rifle-pits, with only six companies.
  It was also engaged at Kennesaw mountain, at Bolton, Miss., in two fierce engagements before Atlanta, at Jonesboro and at Lovejoy's Station. Joining in the march to the sea, it assisted in the investment of Savannah and the Carolina campaign.
  It fought at Pocotaligo, tore up railroads, drove the enemy from Orangeburg assisted in the capture of Columbia and Winnsboro, joined the triumphant march north through
Petersburg, Richmond, Fredericksburg and Alexandria, participated in the grand review at Washington, and was mustered out at Louisville, July 16, 1865.
  Its original strength was 1,045. Gain by recruits, 420; substitutes, 177; draft, 25; veteran reenlistments 519; total, 2,186. Losses by death, 294; desertion, 26; transfer, 64; discharge, 336; mustered out,1,466.