'At Ploegsteert Wood on 25th March 1917. The 13th Battery was under very heavy hostile fire, During the shelling three men were wounded in the billets close by, two of them seriously. Sgt Mason went alone to the billet, bandaged the three men, had two of them removed, and under heavy fire carried the third man on his back, a distance of 300 yards, to a place of safety. By this act he showed a splendid example of courage and saved the men's lives. He has on several previous occasions performed acts worthy of recognition.'
Source: London Gazette
Date: 11 May 1917

Regimental number	2/2485
Address	78 Nelson Street, Petone
Marital status	Single
Next of kin	Mother, Mrs J F Mason, 78 Nelson Street, Petone, Wellington
Rank on embarkation	Bombardier
Enlistment status	Volunteer
Unit name	New Zealand Expeditionary Force, 8th Reinforcements, New Zealand Field Artillery
Embarkation details	Unit embarked from Wellington on board Willochra on 13 November 1915
Medals	Military Medal 'At Ploegsteert Wood on 25th March 1917. The 13th Battery was under very heavy hostile fire, During the shelling three men were wounded in the billets close by, two of them seriously. Sgt Mason went alone to the billet, bandaged the three men, had two of them removed, and under heavy fire carried the third man on his back, a distance of 300 yards, to a place of safety. By this act he showed a splendid example of courage and saved the men's lives. He has on several previous occasions performed acts worthy of recognition.' Source: London Gazette Date: 11 May 1917
Miscellaneous details	Nominal Roll Vol. 1: Field Artillery/Eighth