The phrase "Battle of Britain pilot" rolls off the tongue, but Clark's death is a reminder that navigators (observers) and air gunners were also among those who qualified for the Battle of Britain clasp. Most of these served on Blenheim squadrons, many of which were transferred from Coastal to Fighter Command during the battle. Indeed when I dealt in medals, the only Battle of Britain group which ever passed through my hands had been awarded to a Blenheim air gunner,and it also had the 'Atlantic" clasp on the recipient's Aircrew Europe Star.
RIP