Surgeon Major John Coote Ovens served in the Crimea with the 9th Regiment from 13 November 1854. He was at the siege and fall of Sebastopol and the assault of the batteries on 18 June. He received the medal with clasp, and the Turkish medal. He published: a Case of Aortic aneurysm, AMD Report Vol 8 (1866); and a Case of typhus fever.
16 Dec 1853 Staff Assistant Surgeon.
27 Jan 1854 Appointed Assistant Surgeon 1st/9th (East Norfolk) Regiment of Foot.
Malta 3 Mar 1854 Arrived from Ireland. Quartered at Valletta.
Served in the Crimean War.
24 Apr 1854 Returned to England with invalids.
Malta 1856 At Malta with 1st/9th Foot.
24 May 1861 Appointed Staff Assistant Surgeon vice Staff Assistant Surgeon Patrick Charles Baxter who was placed upon half-pay.
1861 – 1862 Served in Corfu.
12 June 1863 Staff Surgeon.
1863 On duty in Dublin and Birr.
9 Oct 1863 Exchanged with Surgeon William Johnstone Fyffe Surgeon 5th Dragoon Guards. Surgeon J. Coote Ovens remained the medical officer of 5th Dragoon Guards until his retirement in 1877.
16 Dec 1863 Staff Assistant Surgeon.
4 Feb 1877 Retired to half-pay.
1880 At Woodville Gortatlea Co. Kerry.
1889 At Aughnagaddy Letterkenny Co. Donegal.
29 May 1894 Surgeon-Major John Coote Ovens died at Ramilton, Co. Donegal, aged 61 years.
- Drew R., 1968. Entry No: 5180. Medical Officers in the British Army 1660 – 1960. Vol 1 (1660 – 1898) London: Wellcome Historical Medical Library.
- RAMC/PE/3/27/Drew. Manuscript for Drew's Roll.
- Succession Books Vol VI, (1 May 1846). Returns of service of medical officers in the Regular Army.
- The Services. Br Med J (1894); 1: 1441 (Published 30 June 1894).