There was a character nicknamed Tuppence in a couple of lesser-known Agatha Christie books. Had a husband called Tommy. Literary pedigree, therefore, or subliterary anyway.
Biggles was the very gung-ho hero of numerous boys' books back in the 1920s and onwards. A pilot, went around zapping the bad guys and flying off triumphantly into the sunset. Very unsophisticated by today's standards - reading them now is like time travel. Also very prejudiced towards anyone with a native language other than English, and indeed to any "natives"!
Posie happens. There was a somewhat feminist cartoonist on the Guardian called Posie Simmonds or something (too lazy to look it up). Usually a nn for a Rose name. Connected to Kew, perhaps?!
So, nmsaa but one can see where they're coming from.