On 5 March 1943 William was commissioned Pilot Officer on probation as per the London Gazette, dated 22 June 1943.
William served with 160 Squadron as a Flying Officer.
On 19 April 1944 Flying Officer William John Crawford died on active service and is buried at Colombo (Liveramentu) Cemetery, 2.L.11.
London Gazette
Commonwealth War Graves Commission
