"This version is very similar to those that we have found in New England, with the exception of the last two verses."

Yes, John - but those two last verses (Hell / Heaven) appear in Child F (Scott and Motherwell).

Also, that version and many of those from new England contain the verse:

"If you could have married a king's daughter
I'm sure you are to blame"

... which is absent from De Marsan but present in Socts oral and English broadside versions.

The verse beginning:

"She arrayed herself in rich attire
Most glorious to behold"

... is very common in versions from throughout the US, but again is absent from De Marsan; the Scots versions do not contain precisely the same verse, although some do mention posh attire (especially slippers of gold and velvet).

Lastly, several of your New England versions use the formula "keep me from slavery" as opposed to "keep me from misery" in de Marsan, and "what have you to keep me withal, if along with you I should go" in some Child texts (the Peacock Newfoundland version echoes the older versions).

So it looks like something other than De Marsan, whether another broadside or some consistent patterns in oral tradition, has contributed to the predominant form of the ballad in North America.

The Newfoundland version is interesting. Verses 1, 2 and 8 are aberrent, with the touch of a poetic hand about them. Someone has doctored that at some point.

It's also fascinating that the version you've given us from Mrs. Alice Robie of Pittsburg, New Hampshire, starts out with the first verse of the broadside ballad 'Turtle Dove' (aka 'Ten Thousand Miles'). There's one other example in Bronson of the same confusion of two separate songs: version 18, that opens with three verses of 'Turtle Dove', and comes from Wisconsin. Make of that what you will!