|Name at Enlist||Fredrik Aargaard|
|Other Names||Aasgaard, Nasgaard|
|Residence at Muster-In||Chicago, Cook County, IL|
|Company at Enlistment||A|
|Rank at Enlistment||Corporal|
|Muster Date||11 Jan 1862|
Fredrik Aargaard 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 Aargaard as living in Chicago, Cook County, IL, and unmarried. He enlisted for three years on October 9, 1861, at Chicago, and mustered on January 11, 1862, at Madison, WI, as Corporal (Korporal). On detached service with the Pioneer Corps (combat engineers) from November 26, 1862, to August 1864. He was promoted Sergeant (Sersjant) on November 1, 1864. He mustered out on December 20, 1864, with Company A at Chattanooga, TN. He was promoted Second Lieutenant (Løytnant) on February 25, 1867, retroactive to September 20, 1863.
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. 142, Regimental Muster and Descriptive Rolls, 1861-1865, compiled circa 1885, Wisconsin Adjutant General’s Office vol. 20, p. 10; Det Femtende Regiment Wisconsin Frivillige [The Fifteenth Regiment, Wisconsin Volunteers], Ole A. Buslett, 1894, B. Anundsen, Decorah, IA, p. 344; Nordmaendene i Amerika, Martin Ulvestad, 1907, History Book Co., Minneapolis, MN, p. 256; Oberst Heg og hans gutter, Waldemar Ager, 1916, Fremad Publ. Co., Eau Claire, WI, p. 216.