[Graham Boak]

I would take the later and more detailed information in 12DIM above the earlier and more basic data in the Air Britain. You might also like to look at Blackadder's diary, as edited (with extra information) by Robert Dixon in "The Diary of a Hurricane Pilot in the Battle of France", published by Fonthill 2015. ISBN 978-1-78155-310-7. Sadly this book doesn't have an index, nor does Blackadder identify the aircraft by serial.

Fidler was shot down on the 19th, so there's no reason to doubt that Parrot could have been wounded in the same aircraft before then.

I have P2621 as possibly 615 Sq, but can't say where that came from. However as possibly linked transcription errors I do have P2671 as AF.G, with this noted as in a blackout block, and also P2571 as G, often flown by Blackadder in May.

I have nothing on P2830 other than its listing in Air Britain.