- Second World War (1939-1945)
- Acting Flight Lieutenant
- No. 66 Squadron, Royal Air Force
- Awarded on:
- July 22nd, 1941
"This officer has displayed great determination in combat and has destroyed at least six hostile aircraft. On a recent occasion, he encountered a formation of three enemy bombers escorted by five fighters. Flight Lieutenant Allen immediately attacked these aircraft in company with another pilot, and succeeded in destroying one of the fighters."