Swen S. Olgaard lived and worked in Cooperstown 65 years, from 1906 until his death, at age 86, in 1971. Among other things, he worked as a mechanic and plumber and was in an automobile dealership and served four terms as sheriff of Griggs County. For the greater part of 45 years, his main occupation was the plumbing and heating business. He and his wife, the former Hilma Erickson were parents of five sons. The youngest, Kenneth, went into partnership with his father after World War 11 and continued the Olgaard Plumbing business until his death in 1981. He held a master plumber's license. Oswald Olgaard, second son of the Swell Olgaards, also occasionally worked in the family plumbing business.

Source: Cooperstown, North Dakota 1882-1982 Centennial Page 200