ALLINSON, Louis Henry - AC1c - 644929 - RAF - his headstone has ALLINSON.
His CWGC entry used to have 'ALLISON' for him as noted here
but this has obviously been updated since the NEWMP page was created:
I have N9234 as the Tiger Moth code, from the 13 Sqn ORB:
Flying accident Tiger Moth N.9234 on Hooton Park Aerodrome. F/O J. R. Bellerby (41652) killed, 644929 AC1 Allinson L. H. Fitter 2 Seriously Injured.
644929 AC1 Allinson L.H. Fitter 2 Died of Pneumonia following injuries in flying accident on 18/12/40.
See also: https://aviation-safety.net/wikibase/22315