Might as well post it anyway.
It's in the DT, slighty from what I have see, "Wild Rippling Waters". Here's what I sing which is how I remember how Lomax sang it (my memory not even close to good though)

THE WILD RIPPLING WATERS

I was out walking an' a-ramblin' one day;
I spied a fair couple a-making their way;
One was a lady an' a ladly was she
An' the other a cowboy, an' a brave one was he,
An' the other a cowboy, an' a brave one was he.

"Where are you goin', my pretty fair maid?"
"Just down by the river, just down by the shade,
Just down by the river, just down by the spring,
See the waters gliding hear the nightingale sing,
See the waters gliding hear the nightingale sing."

They hadn't been there but an hour or so
Out of his satchel drew fiddle and bow;
He played his fiddle all on the high string,
An' he played this tune over an' over again,
An' he played this tune over an' over again.

He tuned up his fiddle and he rosined his bow;
He played her a lecture, he played it all o'er;
He played her a lecture that made the valley ring.
"Hark! Hark!" said the fair maid. "Hear the nightingale sing.
Hark! Hark! " said the fair maid. "Hear the nightingale sing."

"Now," said the cowboy, "I should have been gone."
"Oh no," said the fair maid, "just play one more song.
I'd rather hear the fiddle just played on one string
Then to see the waters gliding hear the nightingale sing
Then to see the waters gliding hear the nightingale sing."

She said, "Now dear cowboy, will you marry me?"
"Oh no, My dear lady, that can never be.
I have a wife in Arizona, an' a lady is she;
One wife on a cow-ranch is a plenty for me,
One wife on a cow-ranch is a plenty for me."

"I think I'll go to Mexico, I'll stay 'bout a year;
I'll drink red wine, I'll drink lot's of beer.
If I ever return, it'll be in the spring,
To see the waters gliding, hear the nightingale sing,
To see the waters gliding, hear the nightingale sing."

Come all you fair maidens, take warning from me;
Never place your affections in a cowboy so free;
He'll go away an' leave you like mine did me;
Leave you to rock cradles, sing "Bye-o-babee";
Leave you to rock cradles, sing "Bye-o-babee".

Barry