- Second World War (1939-1945)
- Flying Officer
- No. 224 Squadron, Royal Air Force
- Awarded on:
- February 8th, 1944
"Flying Officer Allen has completed many sorties and throughout has displayed great keenness and determination. One night as captain of aircraft he executed an attack on a large U-boat. Pressing home his attack with great determination, Flying Officer Allen straddled the vessel with a number of depth charges. On several other occasions this officer has participated in successful attacks on the enemy's underwater craft. By his skill, courage and coolness he has set a very fine example."