|Name at Enlist||Mathias Christiansen|
|Other Names||Matias Christenson|
|Lived||ca. 1838 - 24 May 1862|
|Residence at Muster-In||Clinton, Rock County, WI|
|Company at Enlistment||G|
|Rank at Enlistment||Private|
|Muster Date||13 Dec 1861|
|Cause of Death||nerve fever|
|Death Location||hospital at Mississippi River Island No. 10|
|Burial Location||Mississippi River National Cemetery at Memphis, TN|
Mathias Christiansen joined the WI 15th Infantry, Company G. The men of the company called themselves the "Rock River Rangers."
The army listed Christiansen as living in Clinton, Rock County, WI, age 23, and unmarried. He enlisted for three years on October 3, 1861 at Beloit, WI, and mustered at Madison, WI on December 13, 1861 as a Private (Menig). He died of Nerve fever in hospital at Mississippi River Island No. 10 on May 24, 1862. He was buried in Mississippi River National Cemetery at Memphis, TN.
Sources: Series 1200: Records of Civil War Regiments, 1861-1900, Wisconsin Adjutant General’s Officem box 76-9; Regimental Muster and Descriptive Rolls, 1861-1865, Wisconsin Adjutant General’s Office, vol.20, p.100; Wisconsin in the War of the Rebellion, Wm. DeLoss Love, 1866, Church and Goodman, Chicago, p.1082; Det Femtende Regiment, Wisconsin Frivillige [The Fifteenth Regiment, Wisconsin Volunteers], Ole A. Buslett, Decorah, IA, 1894, p.531; Nordmændene i Amerika, Martin Ulvestad, 1907, History Book Co., Minneapolis, MN, p.275; Oberst Heg og hans gutter, Waldemar Ager, 1916, Fremad Publ. Co., Eau Claire, WI, p.312.