seeking information on Karinius Knudtson

I'm looking for information on Karinius Knudtson (B. 20June 1851 in Elverum, Norway). birth record 87 https://urn.digitalarkivet.no/URN:NBN:no-a1450-kb20070126310541.jpg He arrived in the US around 1870. On 5 Dec 1875, Karinius Knudtson married Susana Johnson at York, Green County, Wisconsin. The marriage record indicated Karinas' mother's name Martha and father Knudt Olson. They lived on the eastern edge of Moscow Township in Iowa County, Wisconsin. On neighboring farms in Moscow Township are two other Knudtson - Syver and a Gilbert. Did Karinius have siblings? The History of Iowa County 1881 recorded that "Karinus Knudson Farmer; Sec. 11; P.O. Moscow; owns 240 acres of land, valued at $20 per acre; born in Norway in 1851; came to America in 1870, and located in Moscow; he engaged in blacksmithing for a number of years, and, in 1879, he settled on his present farm. In 1875, he married Susan Johnson, a native of this county; they have two children - Ellen Sophia and Karl Gustas. Mr. K. is a member of the Town Board, which office he has held for the past three years. Are members of the Lutheran Church. Politics, Republican. " The River Forks Cheese Factory Organized in 1885 by Karinius Knudson, Ole Larson (Bjorgeseter), Magnus Johnson, Henry and William Ivey, Iver and Thosten Retrum and located on Karinius Knudson's farm. He left Iowa County prior to 1900. Karinius moved to Minnesota with his wife and son Henry. They survived the historic Great Hinckley fire of 1894, Pine County, Minn. They then moved to Nebraska. He and Susana are buried in Mason City Cemetery in Mason City, Custer County, Nebraska.