Hi Grampus, Lea and others. Writing the song and (copyright control) may not always be the same thing.
I know some singers who approach song writers with a view to singing their song , providing the writer sells (or lends for a particular duration)the copyright.
I'm certainly not saying THAT in this case, and it would be interesting all round if you could establish ( for this thread ) that Leonard and or Squires penned this piece.