Surgeon Henry Thornton Mostyn qualified MD from Kings' College Aberdeen in 1822. He entered the Army Medical Department in 1809.
8 July 1809 Appointed Hospital Mate for General Service.
4 Jan 1810 Assistant Surgeon 15th Dragoons.
11 Feb 1813 Assistant Surgeon 6th Royal Veteran Battalion.
19 Aug 1813 Assistant Surgeon 9th Royal Veteran Battalion.
7 July 1815 Assistant Surgeon 1st Royal Veteran Battalion.
7 Mar 1816 Assistant Surgeon 41st Regiment of Foot.
Feb 1822 Married Cecilia Susanna Forbes, fifth daughter of Donald Forbes Esq., at Melville Place Stirling.
20 Oct 1825 Surgeon 81st Regiment of Foot.
23 Feb 1826 Appointed Surgeon 8th (The King's) Regiment of Foot from 81st Foot on the promotion of Surgeon Thomas Cartan to Physician.
14 Jan 1830 Surgeon 47th (Lancashire) Regiment of Foot vice Surgeon Archibald Millar who retired upon half-pay. The vacancy created in 8th Foot was filled by the recall from half-pay of Staff Surgeon James Hunton Cardiff.
Malta 28 Feb 1837 Arrived from Gibraltar.
3 May 1837 Birth of Georgina Mostyn daughter of Surgeon Henry Thornton Mostyn 47th Foot and Cecilia his wife. The child was baptised on 28 May 1837 by Archdeacon John Thomas Howe Le Mesurier Chaplain to the Forces.
Malta 1838 Surgeon 47th Foot.
Malta 24 July 1838 Acted as PMO in the absence on leave of Inspector of Hospitals John Frederick Clarke.
Malta 8 Feb 1839 Returned to his duties as surgeon 47th Foot.
24 Sept 1839 Birth of Margaretta Mostyn. The child was baptised on 11 October 1839 by Archdeacon John Thomas Howe Le Mesurier Chaplain to the Forces.
Malta Oct 1839 Acting Inspector of Hospitals on the departure of John Frederick Clarke.
Malta 28 June 1846 Birth of Ellen Selina Georgina to Cecilia and Henry Thornton Mostyn.
Malta 30 May 1847 Death of Ellen Selina Georgina. Buried at Msida Bastion, Floriana.
22 Oct 1848 Died in his 59th year, at the residence of his son-in-law Samuel Woodhouse, at Norley Hall Cheshire.
- Drew R., 1968. Entry No: 2983. Medical Officers in the British Army 1660 – 1960. Volume 1: 1660 – 1898. London: Wellcome Historical Medical Library.
- TNA:WO 25/3898, Records of Service – Officers of the Medical Department (1790–1847).