More About Douglas William Blackwell and Joan Mary Bernice Robinson: Marriage: 5 April 1955, Caxton Hall, London..
Children of Douglas William Blackwell and Muriel Stuart are:
John William Blackwell, b. 21 June 1950, Queen Charlottes Hospital, London., d. 8 December 2004, Princess Royal University Hospital,Farnborough, Kent..
Children of Douglas William Blackwell and Joan Mary Bernice Robinson are: