There once was railroad in my home town known as the Delaware Lackawanna & Western (DL&W), but usually called Delay Linger & Wait. Anyway, there was a song about this RR. I remember my father singing what I believe to be the Chorus, which went:

Where do you work a John?
On the Delaware Lackawan.
What do you do a John?
I push, and I push, and I push.
What do you push a John?
I push the cars around.
Where do you work a John?
On the Delaware Lackawan, -awan, -awan, -awan,
On the Delaware Lackawan.

At least I think that is the chorus. If anyone knows the rest of the lyrics, I be happy to have them.