I have one questionable spot in the lyrics, but other than that it should be right. I found a video of Unstrung Heroes singing the song but the audio was not great, so I'm going to base it off another recording first.

Here's the version of the song by Kathryn Roberts and Sean Lakeman, from their album "2"

Also read more about the mine incident on this page: http://www.cornwall-calling.co.uk/mines/callington/drakewalls.htm

At the Drakewalls Mine in eighty-nine
Rule and Bant, they dug for tin
Forty fathoms down the mine
The roof collapsed, the world gave in

Ring the bell, run like hell
"Save our maids" the miners cried
Trapped down in their silent tomb
Rule and Bant considered doom

Where to dig, when to try
Who might have plans of the mine
Tell us now, before they die
To have no plans, it is a crime

Two days passed and Pinching came
Paced the earth and marched the ground
Told the miners where to dig
That's the place where they'll be found

"Rule and Bant," shout their names
"Hold on lads, we're coming"

Light that fuze, stand back quick
Gad and pick, and toil the slack
Then the air, so poisoned thick
Drove the miners to pull back

Thomas Bawden was the man
He racked his brains and made a plan
Blacksmith's bellows pumping air
Saved the lives of that poor pair

"Rule and Bant," shout their names
"Hold on lads, we're coming"

Eight days passed and on the sound
The muffled cries from underground
Grown me wept, I've heard them say
And ??gone asleep?? that joyfull day

Two more days they labored on
Til midnight on that Saturday
Weak and weary, still alive
Rule and Bant above did rise

"Rule and Bant," shout their names
"Well done lads, they're coming"

"Rule and Bant," shout their names
"Well done lads, they're coming"

Transposed by ear from here: https://www.youtube.com/watch?v=rP2eU7qqMXQ