- Awarded as per Canada Gazette dated 10 October 1942; confirmed by CARO/3580 dated 2 September 1943, "in recognition of gallant and distinguished services in the combined attack on Dieppe."
Dieppe, 19 August 1942
During the operation at Dieppe, 19 August 1942, Lieutenant Gartshore commanded 13 Platoon, "C" Company, Royal Hamilton Light Infantry.
He was in the first wave to land on the beaches, upon reaching which he not only directed the blowing of the first line of wire, but also blew the second line of wire after personally carrying up the Bangalore torpedo.
During the laying of the torpedo he was severely wounded in the right arm but nevertheless carried on and led his platoon to the Casino.
During the evacuation he assisted wounded personnel into the boats under very heavy fire. Lieutenant Gartshore displayed great leadership, determination and power of command throughout the action.
Not only was he an inspiration to his men but by his efforts he brought to the boats at least three casualties who would otherwise have been left on the beaches.