When Mariane Thomasdatter was born on 20 October 1832, in Torslev, Dronninglund, Hjørring, Denmark, her father, Thomads Thomadsen, was 24 and her mother, Christiane Andersdatter, was 21. She married Jens Pedersen on 31 October 1862, in Torslev, Dronninglund, Hjørring, Denmark. They were the parents of at least 1 son and 3 daughters. She lived in Albæk, Dronninglund, Hjørring, Denmark in 1870. She died on 2 March 1879, in Torslev, Dronninglund, Hjørring, Denmark, at the age of 46.