Rear-Admiral John Saumarez Dumaresq, 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.
- Occupation
- naval officer
- Citizenship
- United Kingdom
- Born
- October 26, 1873
- Died
- July 22, 1922
