'On the day of 25th September 1916, during the attack upon the German positions, N.W. of Flers, Cpl McCaw was in charge of a Stokes gun. After the troops he was supporting had gained their objective this NCO gallantly reconnoitred forward and saw that on our left, troops of the Black Watch (1st Division) were held up by a machine gun strongly placed. His officer being with the other gun of the sub section at the time, Cpl McCaw on his own initiative brought his gun into action under heavy fire and silenced the enemy machine gun, thus helping the Black Watch to gain their objective.'
Source: London Gazette
Date: 9 December 1916

Regimental number	8/2296
Address	Knox Manse, Lower Hutt
Marital status	Single
Next of kin	Father, S J McCaw, Lower Hutt, Wellington
Rank on embarkation	Private
Enlistment status	Volunteer
Unit name	Otago Infantry Battalion, Samoan Advance Party
Embarkation details	Unit embarked from Wellington on 15 August 1915
	The Otago Infantry Battalion, Samoan Advance Party, left New Zealand on board two ships, HMNZT 1 'Moeraki' and HMNZT 2 'Monowai'. It is not possible from the Nominal Roll to determine on which ship an individual embarked.
Medals	Military Medal 'On the day of 25th September 1916, during the attack upon the German positions, N.W. of Flers, Cpl McCaw was in charge of a Stokes gun. After the troops he was supporting had gained their objective this NCO gallantly reconnoitred forward and saw that on our left, troops of the Black Watch (1st Division) were held up by a machine gun strongly placed. His officer being with the other gun of the sub section at the time, Cpl McCaw on his own initiative brought his gun into action under heavy fire and silenced the enemy machine gun, thus helping the Black Watch to gain their objective.' Source: London Gazette Date: 9 December 1916
Miscellaneous details	Nominal Roll Vol. 1: Otago Infantry Batln/Samoan Adv & Fourth