11 April 1944 mission by 613 Squadron ( Hague Gestapo HQ )

[Larry]

Sorry only some minor bits of info:

These aircraft were on the Sqn at the time so it might help narrow down the ones involved

Mosquito HP927 was SY-B and was on strength 14.2.44 to 1.1.45
Mosquito LR302 was SY-S and was on strength 26.11.43 to 17.1.45
Mosquito LR366 was SY-L and was on strength ??.11.43 to ??.8.45

Mosquito LR303 SY-? and was on strength 2.12.43 to 8.6.44
Mosquito MM408 SY-? and was on strength 26.2.44 to ?.? 45

Mosquito LR275 was 'lent' to 613 Sqn in 1944 by 305 Sqn but I cannot confirm when. It was lost with 305 Sqn on 8.6.44

NB - LR297 was with 613 Sqn in Jan 1944 but passed to 13 OTU and actually crashed in a landing accident at Bicester on 11.4.44!

[Icare9]

Larry, with such a famous incident there must be a number of books and memoirs about it.
I believe there is even a model kit with artwork depicting one as SY-L with another in the background. I would suggest that SY-L could be S/L Batesons aircraft.

Good luck with the search!