Ballad of Mrs. John Henry - Poem/Lyrics?

For that hammer drivin' man
200 pounds and all
Heaven's grace incarnate
10 times 6 feet tall

And that hard steel splendid
As dark as the sky when
That mill whistle sings
Till the morning we'll spend

Your plow aches my clay
Unadorned and unaltered
Just to pave the way
This steam hammer's conquered

Only one could match the will
To two and engage
A matrimonial tithe
This hearts now ablaze

With a fire acquired
Like engine fueled steam
Hot strength so desired
Or something in between