Major Douglas James Stirling Armstrong was the son of Dr William Hunter Stirling and Beatrice Joan Armstrong, of Glasgow.
13 Feb 1827 Hospital Assistant.
22 Nov 1827 Assistant Surgeon 2nd/Rifle Brigade.
Malta 22 May 1828 Appointed in Mar 1828, but arrived on 22nd May.
9 Dec 1828 Embarked to join the regimental depot.
6 Sept 1831 Appointed Staff Assistant Surgeon by exchange with Staff Assistant Surgeon Moses White MD Hospital Staff.
28 Oct 1831 Resigned his commission. He was succeeded by Assistant Surgeon Francis Cornelius Huthwaite from half-pay 90th Regiment. Staff Assistant Surgeon Huthwaite died at Balaclava on 30 Sept 1854.
- Entry No: 4238. Johnston W. Roll of Commissioned Offices in the Medical Service of the British Army. Vol I (20 June 1727-23 June 1898), Aberdeen (1917).