Merle Travis says he wrote this. I doubt it.

Nine pound hammer
Is a little too heavy
For my size, great god,
For my size.

I'm goin' on the mountain
Gonna see my baby
Never comin' back, great God
Never coming back.

It's a long way to Harlan,
It's a long way to hazard,
To get a little a booze, good God,
Just to get a little booze.

This old hammer
It killed John Henry
Won't kill me, great God,
It won't kill me.

etc.

etc...

Art Thieme