'For conspicuous gallantry and devotion to duty. Near Hebuterne on night 19/20th May, Sergt Penberthy was a member of a raiding party, which had just proceeded to the assault when an enemy machine gun opened up on the party. Sergt Penberthy, without hesitation, dashed forward and single handed put the gun and its crew out of action, thereby making the assault possible and saving many casualties. The raid proved successful, 3 prisoners and 2 machine guns being taken, and severe casualties inflicted on the enemy. Although suffering from numerous wounds, Sergt Penberthy covered the withdrawal of his officer and party, and returned safely to our lines.'
Source: London Gazette
Date: 7 October 1918