G'day Josher,

The Essential Ewan MacColl Songbook has it in Dm:

The (Dm) iron road is a hard road and the (C) work is never end-(Dm) -ing ...
(Dm) Working (Am)night and day (Dm) - (G) on the iron (Dm) way,
We're the (Dm) boys who keep the engines rolling.

You (Dm) sign on at the loco shed., they (C) put you to the clean-(Dm) ing ...
(Dm) In your (Am) dunga - (Dm )rees, clean - (G) ing Super (Dm) D's,
You're a (Dm) sweeper (C) upper, (Dm) brewer (C) upper,
(Dm) Shovel (C) slinger, (Dm) spanner (C) bringer,
(Dm) Steam (C) raiser, (Dm) fire (C) dropper,
(Dm) General (C) cook and (Dm) bottle (C) washer,
(Dm) Learning (A7) how to jeep 'em (Dm) rolling.

Regards,

Bob