The Penguin Book version is quite near to what Norma Waterson sings, but it isn't the very same. Where I can't get the exact words, the Penguin Book version doesn't help me. The only thing to do would be to listen to the record and try to write down the words. I still hope somebody who has the CD will do that. Another version very similar to the Penguin Book's is the one by A.L.Lloyd:

An outlandish knight from the north land came
And he came wooing of me
And he told me he'd take me to that northern land
And there he would marry me

Well, she mounted on her lily-white horse
And he upon the grey
And away they did ride to the fair riverside
Three hours before it was day

He says, unlight, unlight my little Polly
Unlight, unlight, cries he
For six pretty maids I've drowned before
And the seventh thou art to be

She says, go get a sickle to crop the thistle
That grows beside the brim
That it may not mingle with me curly locks
Nor harm my lily-white skin

So he got a sickle to crop the thistle
That grow beside the brim
And she catched him around the middle so small
And tumbled him into the stream

Then she mounted on her lily-white horse
And she did ride away
And she arrived at her father's door
Three hours before it was day

Now the parrot being in the windy so high
A-hearing the lady, he did say
I'm afraid that some ruffians have led you astray
That you've tarried so long away

Don't prittle, don't prattle, my pretty Polly
Nor tell no tales of me
And your cage shall be of the glittering gold
And your perch of the best ivory

Now the master being in the bedroom so high
A-hearing the parrot, he did say
What's the matter with you, my pretty Polly
You're prattling so long before day

There came an old cat on the top of me cage
To take me sweet life away
I was just calling on my young mistress
To drive that old pussy away