G'day,
My computer here at work doesn't have a sound card at the moment so I can't play those files yet. Maybe my students will let me out early (i.e. before 9.30 pm).

My preference is the Martyn Wyndham-Read tune (whatever its origins). Chris Kempster was involved in a publication called "Songs of Our Time" at Sydney Uni in the early sixties. His tune appears there with a different variation for each verse.

Cheers,
Alan