This picture was taken at Heston Aerodrome with the Southall Gasometer in the background. The aircraft to the left of the Boston is most likely a Beech Traveller as shown in Airfield Focus (no. 24 Heston).
There is a very good web site for Heston Airport/Aerodrome with associated pre-war/war time history, which you can reach by sending an e.mail to
[email protected]
Lawrence