When Knut Nilsen Vinjum was born on 20 February 1829, his father, Nils Olsen Vinjum, was 34 and his mother, Tora Hansdatter Skjerdal, was 30. He married Ingeborg Ellendsdatter Fretheim in 1879, in United States. He lived in Aurland, Nordre Bergenhus, Norway in 1829. He died in 1902, at the age of 73.