|Name at Enlist||Henry Syvertsen|
|Other Names||Henrik Syversen|
|Lived||1 Mar 1834 - 18 May 1867|
|Birth Place||Christiania (Oslo)|
|Residence at Muster-In||Chicago, Cook County, IL|
|Company at Enlistment||A|
|Rank at Enlistment||Sergeant|
|Muster Date||27 Feb 1862|
|Death Location||Decorah, Winneshiek County, IA|
Henry Syvertsen 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 Chicago, IL, age 28, and unmarried. He enlisted for three years on February 20, 1862 at Chicago and mustered on February 27, 1862 at Madison, WI as a Sergeant (Sersjant). He was sick in Nashville, TN on December 26, 1862. On May 4, 1863, he was appointed as clerk in the brigade hospital. He was sick in Stevenson, AL on August 27, 1863, and was transferred to Veterans Reserve Corps on September 1, 1863. He mustered out from Company 97 of the 2nd Battery, Veterans Reserve Corps, on February 28, 1865 at Lexington, KY, his term of service having expired.
Sources: Series 1200: Records of Civil War Regiments, 1861-1900, Wisconsin Adjutant General’s Office box 76-3; Regimental muster and descriptive rolls, 1861-1865, Wisconsin; Adjutant General’s Office, vol.20, p.20; Det Femtende Regiment, Wisconsin Frivillige [The Fifteenth Regiment, Wisconsin Volunteers] by Ole A. Buslett (Decorah, Iowa, 1894), p.368; Oberst Heg og hans gutter, Waldemar Ager, 1916, Fremad Pub. Co., Eau Claire, WI, p.294.