13 years later, it occurred to me to see whether the Toni Arthur recording is on YouTube. Success – it's at https://www.youtube.com/watch?v=6s9fn6Z7v9Q
Lyrically, there are a few small differences from the Judy Collins recording, and one biggish one: the last stanza in the JC recording ("don't go out into the forest") becomes next-to-last in the TA recording, the last stanza for TA ("cursed be that judge so cruel") is next-to-last for JC.

Musically, I don't care for the way TA frequently expands one syllable to two.

If you read Italian, the essay at https://terreceltiche.altervista.org/gallows-pole-seven-courses/
might interest you.