- Detailed Facts for Robert Gerson MULLER-HARTMANN and Rebecca Elisabeth ASCH
- Detailed Facts for Robert Gerson MULLER-HARTMANN and Eugenia LUNTZ
- Born 11 October 1884 in Hamburg, Germany
- with Rebecca Elisabeth ASCH:
Married 18 December 1912 in Hamburg, Germany
- Child: Susanne MULLER-HARTMANN:
Born 16 July 1914 in Hamburg, Germany
- Child: Rudolf Josef MULLER-HARTMANN:
Born 31 July 1915 in Hamburg, Germany
- Child: Dietrich MULLER-HARTMANN:
Born 27 December 1918 in Hamburg, Germany
- Occupation circa 1920 Teacher in Hamburg, Germany
- Occupation between 1923 and 1933 Lecturer in Hamburg, Germany
- with Eugenia LUNTZ:
Married circa 1929 in Hamburg, Germany
- Immigrated 1937 to London, England
- Died 15 December 1950 in Dorking, Surrey, England
- Probate 3 April 1951 in Dorking, Surrey, England
- Residence in Dorking, Surrey, England
