Hi Irene. I did a search last night and also got zilch. Wellfield's propeller would be a thought but in all the British or Commonwealth air forces the propeller (that would look like a Junior Technician's prop.) is about a hand's width further down from the shoulder. So the flash has to be the Albatross which was always near the shoulder seam.
Officers and non-commissioned aircrew wore their wings over the right breast. The cap has me stumped. The Royal Flying Corps (WWI) had a similar cap and the two buttons had someting to do with service but they were the army's khaki colour so that rules out WWI.
Leaves me to think that maybe it was an early apprentice cap (if it was RAF).
That's another hard one Irene.
Wee Mags raised a point. Which side of the family did this young man come from?
Good luck on your search.
Wait a minute ... I've got my eye on a burd.
... Some try to tell me thoughts they cannot defend ...