Unfortunately, I don't know of any sources for lyrics of old fiddle tunes, but here is a set of words for 'Sally Goodin'' - the version Steve Young sings:

SALLY GOODIN'

Yeah, I had a piece of pie
And I had a piece of puddin'
Lord, I gave it all away
Just to see Sally Goodin'

Well, I looked down the road
And I seen Sally comin'
Lord, I thought to my soul
I'll kill myself a-runnin'

Yes, Sally she's my doosey
And Sally is my daisy
And when she throws her arms around me
She nearly drives me crazy

Well I love potato pie
And I love potato puddin'
And I love the little girl
That's a-called Sally Goodin'

The rain is pouring down
And the creeks are runnin' muddy
And I'm so damn drunk
I can't stand steady

Well I'm going on the mountain
Gonna marry little Sally
There's calm on the hillside
And hell in the valley