She is reported to have m. (2) in 1712 a William Cochrane of Rochsoles.
___________________

Daryl Coup has kindly sent me the image of her baptism register and the transcription,

{Edinburgh Parish]

27 february 1659
Mr Robert Smyth of Southfield Elizabeth Hope, a. d. n Helene Witn. Sir James [?] of Hoptown Sir John Smyth of Grathill Mr John Smyth Advocat

Note that this confirms her mother’s maiden name.

And I evenually guessed the ‘a.d.n.’ meant ‘a daughter named’.
_______________________

Daryl Coup has very kindly sent me a copy of the register and the transcription of this is:

[Marriage Rgister]

January: ii. 1679
Betwixt James Balfour in the paroch of Halyrudhouse and Helen Smith in this paroch Not pledge Marryed January 23 1679

Susequently he also sent me a scanned copy of the original.