Sidney Beckwith Mainguy

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Commander Sidney Beckwith Mainguy, M.V.O., R.N. (23 November, 1884 – 31 March, 1953) served in the Royal Navy.

Life & Career

Born in Plymouth, the son of a Major General F. B. Mainguy.[1]

Mainguy ranked third among 62 successful candidates in examinations for entry to the Britannia intake term of September 1899, with 2806 marks.[2]

Mainguy was promoted to the rank of Lieutenant on 30 August, 1905, but this was changed to 30 November after he lost three months due to a Court Martial.[3]

Mainguy was an interpreter in German and French, gaining his exams in October, 1906.[4]

Mainguy was promoted to the rank of Lieutenant-Commander on 30 November, 1913. He served during the war as navigating officer in Cochrane and in Neptune, fighting in the latter ship at the Battle of Jutland. In September 1917 he was sent to work inside the Admiralty.[5]

Mainguy was promoted to the rank of Commander on 30 June, 1919. He was placed on the Retired List upon his relief on 30 June, 1922.[6]

World War II

Hospitalised, suffering from Parkinson's disease in 1941, he was reverted to the Retired List as medically unfit.

See Also

Naval Appointments
Preceded by
Fitzmaurice Acton
Royal Navy Naval Attaché at Paris
1 Oct, 1917[7] – 17 Jan, 1920
Succeeded by
The Hon. Alexander R. M. Ramsay

Footnotes

  1. Mainguy Service Record. The National Archives. ADM 196/49/195. f. ?.
  2. "Naval & Military Intelligence." The Times (London, England), Saturday, Aug 12, 1899; pg. 8; Issue 35906.
  3. Mainguy Service Record. The National Archives. ADM 196/49/195. f. ?.
  4. Mainguy Service Record. The National Archives. ADM 196/49/195. f. ?.
  5. Mainguy Service Record. The National Archives. ADM 196/49/195. f. ?.
  6. Mainguy Service Record. The National Archives. ADM 196/49/195. f. ?.
  7. The Navy List. (December, 1918). p. 1817.