Olof or Olaf Anderssen Haga

Unfortunately, I don't have an exact birthdate. He was born about 1833...I'm not sure about emigration. If I had to guess, I'd say about 1865-1870. I looked in the census and couldn't find anything. He settled in Chippewa Co, Minnesota, but he died before 1900, so I couldn't find any info other than his approximate birthday and where he was born. He married Serianna (Severin?) Johnsdtr (Norway? Minnesota?). She died on 15 Aug 1904. I would appreciate anything! Thank you.