I just got the brand new Songs of Separation CD. On it, Hazel Askew sings London Lights, and she credits her version to Lizzie Higgins:

LONDON LIGHTS

See how those London lights are shining,
Through the frost and falling snow
Sleep on, sleep on my blue eyed treasure
Oh your mother's got nowhere to go

Oh once a young man learned to love me
And he taught me to do the same
And now, oh now he's gone and left me
And on my brow, there's written shame

See how my sisters they despise me
And my brothers do the same
For father says he will not own me
And my mother hangs her head in shame

Oh Mother! Oh Mother please forgive me
Take me in your heart once more
Although you've turned me from your bosom
Please don't turn me from your door

Although my clothes are going ragged
Still they keep my baby warm
Sleep on, sleep on my blue eyed treasure
Oh your wandering days will soon be done