Here is a version of "Silver Dagger" from Max Hunter, with the dark holler replaced by lonesone valley, and a verse about a christian (crystal?) fountain.

Lyr. Add: SILVER DAGGER

Young men and girls, prolend me your attention
Of these few lines I'm goin' t' write
It's about a young man, who lately courted
A young and beauteous bride.

When her parents came to know this
They locked her up an' kept her so gay
They robbed her of her own dear jewel
Because he was poor as they oft times were.

She wandered till she came to a christian fount'n
She set herself beneath the tree
An' with a sigh, O shall I ever
Ever anymore my true love see.

She pulled out a silver dagger
An' ran it through her snowy white breast
An' with a sigh, O, as she staggered
Farewell, true love, I'm going to rest.

Him a bein' a way down, in a lonesome valley
He heard a cry, so soft n' low
He wrung, he wrung, like one distracted
I'm ruined and I'm dome forever anymore.

Her pretty blue eyes, like the stars were open
She says, sweetheart you've come too late
But pray prepare to meet me in Heaven
Where our love'll be more complete.

He picked up the bloody dagger
An' ran it through his tender heart
O, hain't this a dread-full, dreadfull warn'in'
For such true loves that has to part.

Ollie Gilbert, 1969 Arkansas, in Max Hunter Coll. Cat. #0773, with Real Audio. Variants listed Lost Henry, Sweet William, Silver Dagger and Who Is That At My False Window, all with lyrics and audio. Silver Dagger