When Magnus William Olesen was born on 21 November 1906, in Øster Snede, Nørvang, Vejle, Denmark, his father, Anders Andersen Olesen, was 42 and his mother, Karen Sorensen, was 43. He married Anna Mette Kjersgaard Hansen on 24 April 1932, in Vester, Nørvang, Vejle, Denmark. He lived in Korning, Hatting, Vejle, Denmark in 1925 and Copenhagen, Denmark in 1930. He died on 11 November 1986, at the age of 79.