G'day Alison,I never was among the soppy lot with guitars, singing sad songs with romantic intent, but I guess the traditionalist is still lurking down there and I stay with the old tune - Con Caston's original version. I haven't really tried the other tunes and I doubt that they would be the ones that Joe was chasing.
Con Caston's original tune could be known in UK and US from the singing of Martyn Whyndham-Read. (I'm surprised not to find it on his "Undiscovered Australia" CD - quiet, romantic and sensitive songs ... It seems we do have enough to leave one or two out.)
Presumably Priscilla Herdman's tune gets a run on its native ground. I doubt that any of the others would be known in the US.
regards,
Bob Bolton