Martin's text is in any case either his own re-working (or Bert Lloyd's) of the two texts mentioned above; with just perhaps some input from the broadside test (but more likely some from Lloyd's fertile imagination).

At all events, it's unlikely that the song was ever sung in that form in real life. For what it's worth, the set noted by the Hammond brothers from Mr G Dowden of Lackington contained the verse

They had not been sailing past two weeks or three
Before Peggy and the soldier they could not agree.
He huffed her, he bruised her, he called her sea-whore
And bid her go back to her cuckold once more.

(Journal of the Folk-Song Society, vol 8 issue 34 (1930) pp 196-7)

The Lomax set (as quoted in the DT) has

They had not been sailing more than two weeks or three,
Till Peg and her soldier they two disagreed;
He kicked her and he cuffed her and he called her whore,
He bid her adieu to her own country.

As I've said, that episode doesn't appear in the original broadside song; so the issue here is really a discussion of a modern interpretation or re-write of the late 1960s, based on material found in oral currency in the early part of the 20th century.