Robin and Barry Dransfield recorded a lovely version on their 'Lord of All I Behold' 1971 LP [Trailer LER 2026] which unfortunately didn't make it to the double CD reissue on Free Reed - it's locked up with the Nic Jones stuff and other goodies by the dreaded Bulmer. The Dransfields version follows the Kidson text posted by Bruce fairly closely until the third last line 'branches round'. It then has verses that are similar to those posted by Ian:

... beneath the trees with branches round
What we did there may ne'er be found
As long as tides are flowing

And as she lay upon the grass her colour it kept changing
And then she cried out, 'And alas, never let your mind be ranging
Here's fifty guineas I have in store, come back when you will for there's plenty more
For my jolly sailor I adore,
Just as the tide is flowing'

Then we shook hands and off we steered, Jack Tar drinks rum and brandy
To keep his shipmates in good cheer the lady's gold is handy
Then along with another girl he'll go, to a public house where brandy do flow
Good luck to the girl who does do so
As long as tides are flowing

--Stewie.