From The Scottish Minstrel by Charles Rogers (Edinburgh: William P. Nimmo & Co., 1882), page 447:

LADY JOHN SCOTT.

The authoress of the words and music of many popular songs, Lady John Scott, nee Alicia Anne Spottiswoode, is the eldest daughter of John Spottiswoode, Esq. of Spottiswoode, Berwickshire. Her mother, Helen Wauchope, was second daughter of Andrew Wauchope, Esq. of Niddrie-Mains, near Edinburgh. The subject of this notice married, on the 11th March 1836, Lord John Douglas Scott, second son of Charles, fourth Duke of Buccleuch. Lord John died on the 3d January 1860. The whole of Lady John Scott's musical compositions have been published by Mr C. Lonsdale, 26 Old Bond Street, London, by whose kind permission her Ladyship's songs are subjoined.

[The song texts printed in this volume are:
KATHERINE LOGIE
LAMMERMOOR
SHAME ON YE, GALLANTS!
ETTRICK
YOUR VOICES ARE NOT HUSH'D
THE FOUL FORDS
DURIS-DEER]