'For conspicuous gallantry and devotion to duty during the period 25th February to 16th/17th September, 1918. He was a platoon sergeant during an attack near Beaumont Hamel on 30th March, when he displayed splendid dash and initiative and fine leadership. In the consolidation of the captured position, under heavy machine-gun and rifle fire, his coolness and courage spurred on and inspired his men, and it was mainly through his efforts that the work was completed. Since then his work both as platoon sergeant and A./C.Q.M.S., has been consistently excellent.'
Source: 'London Gazette'
Date: 3 September 1919

Regimental number	10/2778
Address	c/o Mrs Hazelwood, Main Road, Lower Hutt
Marital status	Single
Next of kin	Brother, J Tannahill, Derby Street, Westport
Rank on embarkation	Private
Enlistment status	Volunteer
Unit name	New Zealand Expeditionary Force, 6th Reinforcements, Wellington Infantry Battalion
Embarkation details	Unit embarked from Wellington on board Willochra on 14 August 1915
Final rank	Sergeant
Final unit	1st Battalion, Wellington Infantry Regiment
Fate	Killed in Action 30 September 1918
Place of burial	Villers Hill British Cemetery (Plot II, Row A, Grave No 9), Villers-Guislain, France
Miscellaneous information from cemetery records	Brother: James Tannahill, of Wharf, Avondale, Auckland
Medals	Distinguished Conduct Medal 'For conspicuous gallantry and devotion to duty during the period 25th February to 16th/17th September, 1918. He was a platoon sergeant during an attack near Beaumont Hamel on 30th March, when he displayed splendid dash and initiative and fine leadership. In the consolidation of the captured position, under heavy machine-gun and rifle fire, his coolness and courage spurred on and inspired his men, and it was mainly through his efforts that the work was completed. Since then his work both as platoon sergeant and A./C.Q.M.S., has been consistently excellent.' Source: 'London Gazette' Date: 3 September 1919
Other details	Medals: Distinguished Conduct Medal, 1914-15 Star, British War Medal, Victory Medal
Miscellaneous details	Nominal Roll Vol. 1: Wellington Infantry Batln/Sixth