John Vivian Dacie


John Vivian Dacie
Born(1912-07-20)20 July 1912
Died12 February 2005(2005-02-12) (aged 92)
AwardsFellow of the Royal Society (1967)
Scientific career
InstitutionsKing's College Hospital

Sir John Vivian Dacie, FRS (20 July 1912 Putney, London – 12 February 2005)[1] was a British haematologist.[2][3]


He was born in Putney, London and educated at King's College School, Wimbledon, after which he studied medicine at Kings College Hospital Medical School, qualifying in 1936.


He had house jobs at King's College Hospital, the Royal Postgraduate Medical School, London University, Hammersmith and a research post at Manchester Royal Infirmary. During World War II (1943–1946) he served in the Royal Army Medical Corps, ending up a lieutenant colonel. After the war he was a Senior Lecturer and then in 1956 Professor at the Royal Postgraduate Medical School.[4] He founded the Leukaemia Research Fund, Great Ormond Street, London (1960). His main achievements concerned the Hemolytic anemias, a field in which he was a world leader. He discovered and named Christmas disease, more commonly referred to as haemophilia B, a deficiency of coagulation Factor IX.

Sir Dacie is credited with characterizing the relationship between paroxysmal nocturnal hemoglobinuria and bone marrow failure syndromes like aplastic anemia.[5]

He was founder of the Leukaemia Research Unit, Hammersmith Hospital (1969) and founder and editor of the British Journal of Haematology. He was elected President of the Royal College of Pathologists (1973–1975) and the Royal Society of Medicine (1977).[6]

He had a lifelong interest in lepidoptera.

He was knighted in 1976 and retired in 1977.


He had married Margaret Thynne in 1938.


  • Practical Haematology. Churchill, 1950


  1. ^ Lewis, M.; Mollison, P.; Weatherall, D. (2006). "Sir John Vivian Dacie. 20 July 1912 -- 12 February 2005: Elected FRS 1967". Biographical Memoirs of Fellows of the Royal Society. 52: 67–82. doi:10.1098/rsbm.2006.0006. PMID 18543470.
  2. ^ "Professor Sir John Dacie", The Independent, 26 February 2005
  3. ^ "Sir John Dacie", The Guardian, Caroline Richmond, 11 March 2005
  4. ^ "Professor Sir John Dacie", The Telegraph, 19 February 2005
  5. ^ Parker, C. J. (2002). "Historical aspects of paroxysmal nocturnal haemoglobinuria: 'defining the disease'". British Journal of Haematology. 117 (1): 3–22. doi:10.1046/j.1365-2141.2002.03374.x. PMID 11918528.
  6. ^ Wright, P. (2005). "Sir John Vivian Dacie". The Lancet. 365 (9468): 1382. doi:10.1016/S0140-6736(05)66362-3.
Educational offices
Preceded by
Sir Theo Crawford
President of the Royal College of Pathologists
1972 – 1975
Succeeded by
Sir Robert Williams