Slightly late answer but I seem to remember that Joan Hughes flew the Demoiselle as she was the lightest pilot they could find with enough experience to get it airborne. She had been a member of the Air Transport Auxiliary and was an instructor at Booker for many years. A very nice lady and very modest too.

Here is the Demoiselle approaching the coast of France, followed by the Boxkite and TriPlane, with the Antoinette just visible in the distance.