Oh, there are gaps in everybody's knowledge. I'm not well-up on the community songbook genre (I only have a few, and the song isn't in them), but I'd put a modest bet on all of those printed examples deriving either from Songs of the West or from Kidson and Moffat's Garland of English Folk-Songs (more likely the former).

It would be no surprise, then, if Harry Cox had known it; but if he did, he seems never to have mentioned it. George Orwell evidently knew it, and complained in an article in the Tribune (29 December 1944) that he couldn't get hold of a recording. Earlier in the same year, an arrangement for SATB of the Songs of the West set had been published, which was later recorded by the BBC West of England Singers and doubtless others.

Later collectors are less likely to have ignored the song as deriving from modern songbooks, but they are still unlikely to have bothered to publish it if it was clear that it came from such a source. I expect that there are examples in tape collections, of course. The National Sound Archive lists one (Topic Records archive) sung by a Mrs Foxworthy in 1972. (It also mistakenly lists the composer as Reginald Redman: he was the arranger of the 1944 choral version).

Probably it remained current in "un-revived" form in the West Country for some while after Baring-Gould heard it, and Alfred Williams (Folk-Songs of the Upper Thames, 1923, 154-155) printed a text with the comment that "This was commonly heard at Bampton and Buckland, Berks." Peter Kennedy has a 1936 recording of one verse from the Evershot Mummers in Dorset. Tracing lines of transmission is often impossible, of course, so it would be hard to tell, I should think, who got the song from a book or record and who had it from a continuing tradition; nor would many people think the distinction of any importance.

It would be interesting to know about the presumed 19th century original.