The discussion thread is up!
After a bit of research while preparing the discussion thread, I've gone with the alternate name of On the Makaloa Mat for the thread title. The only published hardcover photo that I could find used that as the name and that seems the name it was originally published under. Honestly I'm not even sure where 'Island Tales' or even 'On the Makaloa Mat and Other Island Tales' as names for it comes from. Since it was posthumous maybe London never named the collection himself but I'm going with the found hardcover title (which also seems to be the GR consensus title).