Irmelin, the elder daughter, studied music theory with her father and in December 1919 married Eggert Møller (1893--1978), a medical doctor who became a professor at the University of Copenhagen and director of the polyclinic at the National Hospital.
Irmelin studied music theory with her father and in December 1919 married Eggert Møller (1893--1978), a medical doctor who became a professor at the University of Copenhagen and director of the polyclinic at the National Hospital. Irmelin was the elder daughter.