Oscar Knutson was born March 17, 1908 at Cooperstown to Knut and Hulda Knutson. He married Marilyn Topp, daughter of Lawrence and Minnie LaMotte Topp, at Jamestown on December 26, 1953. She was born January 23, 1933.
The couple had two children: Kathy and Calvin.
The Knutsons purchased their farm in Rolling Prairie Township in 1963.
Source: A History of Foster County 1983 Page 96B