This is all I could find. Don't know if it's what you want. Please note that on a Shep W site the song is called "It’s Roll on My Time, Boys".
The following is from
www.hms-danae.co.uk/Shanties/roll_on_my_time.htm

IT’S ROLL ON MY TIME, BOYS

CHORUS: So roll on my time, boys, roll on my time.
This is my last trip on the Grey Funnel Line.
Then I'll say farewell to the wind and the brine,
And sing you a song called Roll on my Time.

Well, first we have the Stokers. they work down below.
They give us fresh water and make the ship go.
Now, the ship’s broken down, boys. Well, isn't that fine?
In the hot water tap, there's diesel. in the cold one, brown slime. CHORUS

And next come the Tiffies. a bright branch are these.
If you want to be one, you'll need G.C.E.'s
Now to get G.C.E.'s, boys, you'll need a head.
It's amazing how much work can be done from a bed. CHORUS

And down there in Vernon, the bells they did ring.
They do demolitions and listen for pings.
But the Sonar boys, too, now are wearing a frown,
For what can they ping now the 'Criterion’s' down. CHORUS

And then come the RP's with hands on their hips,
With Chinagraph pencils and puckered-up lips.
Well, they'll get us there, boys, whatever the cost.
Oh, where are we, pilot? We’re f***ing well lost. CHORUS

And last comes the G.I. so tall and so proud.
His voice never made sense, but God! it was loud.
Well, the poor old G.I. is all dead and gone.
They gave him his brains back and christened him 'POM'. CHORUS