"What do you mean by corresponding evidence?
My problem was that I was unable to find certain locations, no doubt long gone. One of such is Kenel/Kennel (Camel?) Club somewhere in London. No idea what it was."

Sounds like you are talking about the Kimul Club (sometimes spelled Kimmel). Its on the map. It was London club run by Bobbie Page, that became a favorite of pilots looking to meet women from the theatrical world. It was popular with Battle of Britain pilots. It was mentioned in Vincent Orange's "Johnny Checketts: The Road to Biggin Hill," and in "Aces, Warriors, and Wingmen," by Wayne Ralph.