When Nielsine Bjørnskov was born on 1 June 1889, in Brede, Tønder, Denmark, her father, Tol Sørensen Bjørnschou, was 33 and her mother, Eline Marie Petersen, was 30. She married Helmar Mikael Mikkelsen on 19 September 1913. They were the parents of at least 3 daughters. She lived in Hylke, Skanderborg, Denmark for about 5 years and Haldum, Sabro, Århus, Denmark in 1925. She died on 18 January 1953, in Halling, Århus, Denmark, at the age of 63.