Olaf P Peterson parents and where from in Norway

I hope to help a friend find out who are the parents of Olaf P Peterson and where they are from in Norway. He married in South Dakota, brides last name is Kvenvold Olaf P Peterson in the South Dakota, Marriages, 1905-2016 Name: Olaf P Peterson Gender: Male Marriage Age: 50 Birth Year: abt 1868 Residence Place: Minn Marriage Date: 1 Sep 1918 Marriage Place: Lake, South Dakota, USA Spouse: Henrietta M Koenrold However he lived most of his life in Jackson, Minnesota 1920 Census 1930 Census And died in Jackson, Minnesota Olaf P. Peterson in the Minnesota, Death Index, 1908-2002 Name: Olaf P. Peterson Birth Date: 23 Apr 1878 Death Date: 22 Dec 1956 Death County: Jackson Mother's Maiden Name: Halgrim State File Number: 007259 Certificate Number: 007259 Certificate Year: 1956 Record Number: 1323183