When Gjertrud Marie Jensen was born on 16 May 1816, in Dronninglund, Hjørring, Denmark, her father, Jens Grægersen, was 32 and her mother, Johanne Marie Jensdatter, was 23. She married Lars Peter Sørensen on 6 April 1847, in Dronninglund, Hjørring, Denmark. They were the parents of at least 4 sons and 1 daughter. She lived in Hørby, Dronninglund, Hjørring, Denmark in 1834 and Vester Hassing, Kær, Ålborg, Denmark in 1860. She died on 5 August 1862, in Vester Hassing, Ålborg, Denmark, at the age of 46, and was buried in Vester Hassing, Ålborg, Denmark.