The lyrics that Clarence Ashley sings on the Smithsonian Folkways CD are slightly different to those given on the previous link. They are:

WALKIN' BOSS

Walkin' Boss (x3)
Well I don't belong to you
I belong (x3)
To that steel Drivin' Crew

Work one day (x3)
Then lay down in the shanty too

Walkin' Boss (x3)
Well I don't belong to you
I belong (x3)
To that steel Drivin' Crew

Well I asked that boss
For a Job
Just a Job
He said "Son, what can you do"
"I can pull a jack
Line a track
(x2) I can pick and shovel too"

Walkin' Boss (x3)
Well I don't belong to you
I belong (x3)
To that steel Drivin' Crew

It goes really well with a clawhammer banjo in mountain minor (gDGCD)tuning.
Cheers
Ray