616 Sqn question

Hi,

I am researching the history of RAF King’s Cliffe and have a question regarding 616 Sqn’s time there specifically April 1942.

Looking through various books and the Squadrons Official Record Book and Summary I have the following three pilots as being killed over the course of two days in April 1942;

12/14/42 – P/O M. Lepel-Cointet – Spitfire VB AD456 – Posted missing after a Circus mission escorting 12 Bostons to Hazebrouk mashalling yards.
12/14/42 – P/O Harley Richard Strouts – Spitfire VB Serial Unknown- Posted missing after a Circus mission escorting 12 Bostons to Hazebrouk mashalling yards.
13/14/42 – Sgt. George Leslie Davidson – Spitfire VB AD543 – Aircraft crashed when its pilot rashly attempted a slow roll immediately after taking off from Kings Cliffe during a visit to 616 Squadron by a party of reporters and press photographers.

I have been attempting to find out the serial number of Strouts’ Spitfire and in my attempts have found various contradictory details (unfortunately the 616 ORB doesn’t list any serials).

Some sources list his name as E.W. Stronts not H.R. Strouts.
Some sources list him as becoming a POW (he is listed on the CWGC website as KIA and commemorated at Runnymede)
Some sources list his aircraft as AD543 (the aircraft I believe Davidson was killed in the following day)
Other sources list his aircraft as AD453 though some sources list this aircraft as surving well beyond this date.

So the basic question is can anyone confirm which aircraft P/O Strouts was flying on 12/04/42 when he was KIA on the Hazebrouk mission?

Thanks,

Mike