'Action before Polderhoek Chateau, east of Ypres, 3rd December 1917, and following days. For conspicuous gallantry and devotion to duty. On 3rd December 1917, during an attack on Polderhoek Chateau, Staff Sergeant D.H.H. Heron visited relay posts, frequently going forward irrespective of severe shell fire. Owing to his courage and energy evacuation of wounded proceeded rapidly. He controlled sixty squads of bearers at relay post, Clapham Junction, working continuously for twenty-four hours.'
Source: 'London Gazette'
Date: 13 March 1918

Regimental number	3/1738
Occupation	Clerk
Next of kin	Mother, Mrs A M Heron, 29 Brentwood Avenue, Mount Eden, Auckland
Rank on embarkation	Staff Sergeant
Unit name	New Zealand Expeditionary Force, New Zealand Rifle Brigade, No 2 Field Ambulance
Embarkation details	Unit embarked from Wellington on 5 February 1916
Medals	Military Medal 'Action before Polderhoek Chateau, east of Ypres, 3rd December 1917, and following days. For conspicuous gallantry and devotion to duty. On 3rd December 1917, during an attack on Polderhoek Chateau, Staff Sergeant D.H.H. Heron visited relay posts, frequently going forward irrespective of severe shell fire. Owing to his courage and energy evacuation of wounded proceeded rapidly. He controlled sixty squads of bearers at relay post, Clapham Junction, working continuously for twenty-four hours.' Source: 'London Gazette' Date: 13 March 1918
Sources	Nominal Roll Vol. 2: Roll 24, p. 34