On 22 December 1939 , he was appointed as a war substantive flight lieutenant .
Farrow returned to serve in World War II ; he was commissioned as a probationary flying officer in the Royal Air Force Volunteer Reserve on 9 September 1939 .
On 22 December 1939 , Farrow was appointed as a war substantive flight lieutenant .
Farrow returned to serve in World War II ; he was commissioned as a probationary flying officer in the Royal Air Force Volunteer Reserve on 9 September 1939 .