This is new information for me but why would he compose a song about John B and dedicate it to the people of Nassau? A more simpler version must have already existed, and he may have turned it into a full song later. The version that was sung in The Bahamas must of been https://www.youtube.com/watch?v=lEfki4mZpcI&t=18s recorded in 1935 in Andros which was just a simple anthem.