Hans Knudson was born in 1840 in Norway.
Yans immigrated to America in the late 1850s, eventually settling in western Michigan. By 1860 he was a mill worker in Muskegon, Muskegon County working for either A. Trowbridge or Lyman Mason (or possibly for both); working at the Mason mill was William Courser and James Little who would also enlist in Company H.
In any case, Yans was 21 years old and probably residing in Newaygo County when he enlisted in Company H on April 28, 1861. (Company H, formerly the “Muskegon Rangers,” was made up largely of men from the vicinity of Muskegon and Newaygo counties.) He died of typhoid fever on January 30, 1862, at Camp Michigan, Virginia, and was presumably buried at or near the camp hospital. He was probably among the unknown soldiers reinterred in the Alexandria vicinity.
No pension seems to be available.