This sketch by Perry Stirling shows a Fire boss who checked the mine before workers entered.
This song tells his story.

JENKIN JENKINS

My name is Jenkin Jenkins,
I'm a fireboss of renown,
At three each morning
I make my usual round.
I walk through open cross cuts
To get up to the face,
To find how much gas there is
In every miner's place.

At my headquarters at the foot
When I return from my round,
The miners all depend on me
For everything safe and sound.
For I am the only person
That dare go in the mines,
To investigate all dangers
Before commencing time.

In your place Patsy Patsy,
I'm sure the roof will drop;
Don't let your laborer load any coal
Until you stand a prop.
In your place, Evan Evans,
I find a very bad joint,
You're not arranging your chamber right
According to the point.

Say, Davis, Smith, and Dougherty-
Where were you yesterday?
I hear you three have been drinking
Every since you got your pay.
You three cannot deny it;
I see it in your faces.
You three can now take out your tools-
I've got men in your places.

Minstrels of the Mine Patch
- George Korson

CHORUS
My name is Jenkin Jenkins,
I'm a fireboss of renown
I'm known by all the men and boys
That work down underground

I travel over rock and coal
That fall down in the night.
I grope my way the best I can
With my small safety light.