I've been reviving this excellent song of Maggie's a lot recently (not least as a relevant calendarical entry on sessions!), and I sang it at the Mudcat Singaround yesterday.
I find the text doesn't really vary between the original versions sung by June Tabor and Maggie Holland herself.
I did notice that Maggie on her 2012 YouTube live recording sings "come from" instead of "belong" at the end of the second line of the first verse, also she adds "So" at the start of verse 5, and sings "badly used" instead of "sore abused" in the first line of the final verse....
Most recently, the Young'Uns covered the song on their "Strangers" CD, and made a couple of changes to the lyric, as follows: singing "just" instead of "only" in the final line of verse 2, and substituting as the final line of verse 6, "Just less room for the rich landowner, he can stay in the Virgin Isles".
So there you go Joe, hope that cleans up sufficiently! It's still a very powerful song, with so many important resonances for our time. A true classic IMHO.