John Saumarez Dumaresq

John Saumarez Dumaresq
Rear Admiral John Dumaresq, 1922
Born26 October 1873 (1873-10-26)
Sydney, Australia
Died22 July 1922 (1922-07-23) (aged 48)
Manila, Philippines
AllegianceUnited Kingdom
Service/branchRoyal Navy
Years of service1886–1922
RankRear Admiral
CommandsHM Australian Fleet (1919–22)
HMAS Sydney (1917–19)
HMS Repulse (1917)
HMS Shannon (1913–17)
HMS Prince of Wales (1912–13)
HMS Swift (1910)
HMS Nith (1908–10)
Battles/warsFirst World War
AwardsCompanion of the Order of the Bath
Commander of the Royal Victorian Order
Order of Saint Catherine (Russia)

Rear Admiral John Saumarez Dumaresq, CB, CVO (/dʊˈmɛrɪk/ duu-MERR-ik;[1] 26 October 1873 – 22 July 1922) was an officer in the Royal Navy. He served during the First World War but is most remembered as an inventor, for development of the device named after him, the Dumaresq, which helped users calculate the rate at which the range to an enemy ship was changing over time. He was the first Australian born officer to command the Australian Fleet.

  1. ^ G.M. Miller, BBC Pronouncing Dictionary of British Names (London: Oxford UP, 1971), p. 48.