Major Douglas James Stirling Armstrong was the son of Dr William Hunter Stirling and Beatrice Joan Armstrong, of Glasgow.
3 July 1799 Deputy Purveyor.
Malta 1802 Deputy Purveyor.
Malta 1803 At the Military Hospital vice Deputy Purveyor Kemp.
Malta Nov 1803 Left Malta.
2 May 1809 Half-pay.
Captain in Argyllshire Militia after retiring to half-pay.
- Entry No: 1870. Johnston, W. Roll of Commissioned Officers in the Medical Service of the British Army. Vol. 1. London: Wellcome Historical Medical Library, 1968.