So here are the slight alterations made to follow the Unstrung Heroes version, found here: https://www.youtube.com/watch?v=UOZLNMmQVVg

There are two parts I still can't quite make out, the first one being at around 1:40 into the video and the other at around 3:10

RULE AND BANT
(Unstrung Heroes)

At the Drakewalls Mine in eighty-nine
Rule and Bant, they dug for tin
Forty fathoms down, dark as the night
The roof collapsed and their world caved in

Run like hell, ring the bell
"Save our maids" the miners cried
Trapped below in their silent tomb
Rule and Bant contemplated doom

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

Where to dig or when to try
No one has the plans of the mine
For God's sake, now who's in charge?
Not keeping plans, it is a crime

Two days passed and Pinching came
??Where his ?shaft? and his burden grew??
He paced on the ground and marked the earth
Told them "dig boys, for all you're worth"

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

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

Light that fuze, stand well back
Blast and pick all the way to slag
Then the air, so thick and foul
Drove the ??prestorous?? under ground

Moses Bawden was the man
Racked his brains and arranged a plan
Blacksmith's bellows pumping air
Saved the lives of that wretched pair

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

Two days passed and oh, the sound
Their muffled cries from underground
Grown men wept, I've heard them say
In Gunnislake on that joyful day

Two more days they labored on
Til midnight on that Saturday
Weak and weary, but alive
Rule and Bant to the surface came

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

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