Hi Alex,
according to the reply given by Joss Leclercq on
http://www.aerostories.org/~aeroforu...p?nummsg=63984
Details on
P2635 are :
AIR 81/398 Pilot Officer L L Appleton: missing presumed dead; Hurricane P2635 failed to return from an operational flight over the Nivelles area, Belgium, 14 May 1940
HTH
bertrand