Note for Dora-9: you identified the airframe correctly, the one Carol calls "my Chipmunk" - a slight exaggeration, as it's owned by a syndicate of a dozen or so.
To be fair, I've only met the lady and Chipmunk once (oddly enough at Old Warden), although we correspond often on the Chipmunk Appreciation FB site, and I just assumed it was "hers".