Perhaps it's a tenuous link like one of their aircraft put down there damaged after a raid, or maybe crashed there?
I;ve had a quick flick though Norman Franks' book 'Forever Strong' but seen no mention yet. I do know that Colin Hanson is writing a new book on the squadron, he may know something. And there's Red McCowatt of the Association who's a member of this forum. Here's his memebr profile from where you can send him a private message rnzaf.proboards43.com/index.cgi?action=viewprofile&user=redmccowatt