From the Bodleian Ballads Catalogue: Harding B 11(4047):

THE WATER-CRESS GIRL

1. While strolling out one evening by a running stream,
Where the water-lilies growing, it was a lovely scene;
And as I was walking, a damsel I espied.
She was gathering water-cresses down by the streamlet side.

CHORUS: Her hair hung down in tresses,
Down by a streamlet, just in a dell.
She was gathering water-cresses,
Was this lovely water-cress girl.

2. I asked her if she were lonely. She answered with a smile:
"Oh! I am not so lonely. It is my daily toil.
I have to be up early my cresses for to sell."
She said her name was Martha, and known as the water-cress girl.

3. We often strolled together down by the running stream,
And since that time my Martha has become my queen.
Although she's poor, she's proved to me a very useful pal,
And a right good wife is Martha, my sweet little water-cress girl.