The citation from the London Gazette dated 11 January 1918 reads:-

"For most conspicuous bravery and devotion to duty in an attack. Private Nicholas, who was one of a Lewis-gun section, had orders to form a defensive flank to the right of the advance, which was subsequently checked by heavy machine-guns and rifle fire from an enemy strongpoint. Whereupon, followed by the remainder of his section at an interval of about twenty five yards, Private Nicholas rushed forward alone, shot the officer in command of the strongpoint, and overcame the remainder of the garrison of sixteen by means of bombs and bayonet, capturing four wounded prisoners and a machine-gun. He captured the strongpoint practically single-handed and thereby saved many casualties. Subsequently, when the advance had reached its limit, Private Nicholas collected ammunition under heavy machine-gun and rifle fire. His exceptional valour and coolness throughout the operations afforded an inspiring example to all."