Flight Lieutenant Donald Frank Constable enlisted to the Royal Australian Air Force on 15 August 1941. He trained as a pilot in Australia and the United Kingdom, and went on to serve with 78 Squadron, Royal Air Force. With this unit, he piloted Handley Page Halifax aircraft in bombing operations targeting Germany. In March 1944, Flight Lieutenant Constable was on a mission to Stuttgart, Germany, when he was attacked by an enemy fighter and sustained damage to his aircraft. However, he successfully continued the operation. For this action, he was awarded the Distinguished Flying Cross. On 24 March 1944, Flight Lieutenant Constable was returning from an operation over Berlin, Germany, when an enemy fighter attacked his aircraft and set the fuel tanks on fire. The aircraft crashed, and Flight Lieutenant Constable, alongside 5 other members of his crew, was killed. They are buried at Berlin 1939-1945 War Cemetery, Germany.