Alfred Shepherd was posted to the squadron that was a unit of what part of the Royal Air Force?
No. 29 Squadron RAF No. 29 Squadron of the Royal Air Force was first raised as a unit of the Royal Flying Corps in 1915, and is one of the world's oldest fighter squadrons. The second British squadron to receive the Eurofighter Typhoon, it is currently the Operational Conversion Unit (OCU) for the Typhoon.
No. 4 Group RAF No. 4 Group was a Royal Air Force group, originally formed in the First World War, and reformed in the wake of the Second World War, mostly part of RAF Bomber Command, but ending its days in RAF Transport Command.