Sigvert Hanson b.1865 Norway

Hello, I am the 2nd great granddaughter of Sigvart (or Sigvert) Hanson. I am wondering if anyone knows anything about his life in Norway, such as the name of his parents, the area he was born in, etc. Listed below is everything I know about Sigvart and his immediate family (wife, children, etc.) If anyone knows anything about them also, I would greatly appreciate it. Birth: Jan 1865 in Norway Death: 1917 USA (Buried in Dodgeville, WI) Arrival: ~1882 (age 17) Married: Elsie Marie Hendrickson in 1882 Children: Oscar Halfdan Hanson (1889-1937) Mabel Geneva Hanson (1889-1976) Belva louise Hanson (1892-1983) Olga Helena Hanson (1895-unknown) Stansmore Hanson (1899-1937) Ella F. Hanson (1902-unknown) Hilda May Hanson (1904-present) Ada Frances Hanson (1907-1924) Thank you!