When Marie Kirstine Rasmussen was born on 27 April 1842, in Sankt Knuds, Odense, Denmark, her father, Ole Rasmussen, was 29 and her mother, Anne Hansdatter, was 27. She married Lars Madsen on 9 July 1871, in Stenløse, Odense, Denmark. They were the parents of at least 4 sons and 3 daughters. She lived in Odense, Denmark for about 45 years. She died on 28 June 1923, in Odense, Odense, Denmark, at the age of 81.