When Mariane Jensen was born on 29 January 1863, in Brovst, Hjørring, Denmark, her father, Soren Christian Jensen, was 25 and her mother, Kirsten Sørensdatter, was 27. She married Soren Larsen on 15 August 1886, in Brovst, Hjørring, Denmark. They were the parents of at least 6 sons and 6 daughters. She lived in Ringgold Township, Dawson, Nebraska, United States for about 10 years and Lexington, Dawson, Nebraska, United States for about 10 years. She died on 22 June 1942, in Cozad, Dawson, Nebraska, United States, at the age of 79, and was buried in Greenwood Cemetery, Lexington, Dawson, Nebraska, United States.