|Name at Enlist||Lewis Thompson|
|Birth Name||Lasse Guttormsen Bø|
|Other Names||Lasse Guttormsen Bø|
|Lived||25 Dec 1842 - 7 May 1862|
|Birth Place||Vik, Sogn|
|Residence at Muster-In||Boone County, IL|
|Company at Enlistment||A|
|Rank at Enlistment||Private|
|Muster Date||15 Nov 1861|
|Cause of Death||Disease|
|Death Location||Mississippi River Island No. 10|
|Burial Location||Mississippi River National Cemetery, Memphis, TN|
Lewis Thompson was born “Lasse Guttormsen Bø” on December 25, 1842, at Vik, Sogn, Norway. He came to Boone County, IL, with his mother and siblings in 1855. He joined the WI 15th Infantry, Company A. The men of the company called themselves the "St. Olaf's Rifles." They were also known as the "Sailor Company" because of the large number of seamen in its ranks, and as the "Chicago Company" because so many of its members were residents of that city.
The army listed him as living in Boone County, IL, age 19, and unmarried. He enlisted for three years on October 16, 1861, in Bad Ax County, WI, and mustered at Madison, WI, on November 15, 1861, as a Private (Menig). Thompson died of disease at Mississippi River Island No. 10 on May 7, 1862, and was buried in Mississippi River National Cemetery, Memphis, TN.
Sources: Series 1200: Records of Civil War Regiments, 1861-1900, Wisconsin Adjutant General’s Office, Archives, Wisconsin Historical Society, Madison, box 76-3; Regimental Muster and Descriptive Rolls, 1861-1865, Wisconsin Adjutant General’s Office, Archives, Wisconsin Historical Society, Madison, vol.20, p.20; Det Femtende Regiment, Wisconsin Frivillige [The Fifteenth Regiment, Wisconsin Volunteers], Ole A. Buslett, 1894, Decorah, IA, p.370; Oberst Heg og hans Gutter [Colonel Heg and his boys], Waldemar Ager, 1916, Fremad Publ. Co., Eau Claire, WI, p.294; Zona A Mathison.