Just to save circling round the buoy again with NCO pilots, AIR 78 cited by Ticketyboo has 6 Alexander Archibald but, as rightly said, no further info other than numbers.
There appears to be no London Gazette entry around the Second World War time for an RAF or RAFVR officer of that name (or variations).
MaxD
PS For info, you don't have to bother to download the AIR 78 file, go to Preview and trawl through the index cards there, easily readable.