Issued: 26-Jul-1919, Canada Gazette
"For gallantry and devotion to duty on the occasion of the explosion at Halifax, Nova Scotia, on the 6th December, 1917. At the time of the explosion two divers were down under the supervision of Mr. Gammon; the diving party were scattered by the explosion, and there was no one to handle the pump; Mr. Gammon was thrown down, but regaining his feet, manned the pump, and with the assistance of Seaman Walter George Critch (RNR, from Newfoundland who received the Meritorious Service Medal), kept the pump going until the divers were released and placed in safety. Debris was falling in all directions during the whole time, and four men are normally required to man a diving pump."