Thanks for all the responses!
Particularly liked the MAINLY NORFOLK site!

Here are a few additions:

Bob Dylan is credited with singing it at a private performance in 1960, and it appears on the CCOLUMBIA album DYLAN (this comprised of outtakes from previous albums - issued 1973 when Dylan moved to ASYLUM records)

The earliest cited revival recording by Peggy Seeger was originally issued on the PYE-NIXA npl 18013 Lp AMERICAN SONG TRAIN Vol.1 recorded Jan or March 1958, reissued on CD as cited by Keefer.

The liner notes:
Mary Anne, sung by Peggy Seeger with banjo, is an American
love song from Canada. the invention of a Canadian trapper,
who rhymed it together at lonely campfires on a long trek
through the Hudson Bay country many years ago. A relative
of the English TURTLE DOVE song, it was recorded by Marius
Barbeau , with whose kind permission it is reproduced here.

The Ian & Sylvia recording was reissued on CD (same as LP), and
MARY ANNE was included in the CD Ian & Sylvia The Best of the Vanguard Years.
Liner Notes by Nat Hentoff:
Mary Anne was collected from a Canadian trapper by
Dr. Marius Barbeau, the brilliant Canadian folklorist. Ian
and Sylvia learned the song from Edith Fowke, and so far
as they can recall, it was the first number they collaborated
on as a duo. One of the distinctive qualities of the team is
their capacity to communicate tenderness with unself-con-
scious grace and taste.


Best wishes, Thomas.