Per Hansson Yemheim Fimreite

Could someone please help me with the family of this man. It is the only name from family book but the family since him has the last name "Northness" maybe farm name. I only know he was born abt 1805 in Norway Died Clear Lake, Hamilton Co, Iowa 1851 married Kari Johannesdatter Slinke in Norway and went to USA I think 1858 Thank you for your help Renee Sanders, OREGON