When Gjertrud Marie Aarup was born on 19 May 1859, in Farsø, Ålborg, Denmark, her father, Jens Sørensen Aarup, was 55 and her mother, Mariane Christensdatter, was 33. She married Hans Christian Christensen on 2 June 1882, in Farsø, Ålborg, Denmark. They were the parents of at least 6 sons and 3 daughters. She lived in Farsø, Gislum, Ålborg, Denmark for about 51 years. She died on 2 February 1922, in Farsø, Ålborg, Denmark, at the age of 62, and was buried in Farsø, Ålborg, Denmark.