FroodoI agree. Ramblin' Jack sang different lyrics each time he recorded it. It seems to be made up of floaters anyway. He sometimes sings 'Tempe got a nine dollar shawl' etc. In one version, these macabre lines appear:
Well I never liked no railroad man
Never liked no railroad man
For a railroad man will kill you if he can
And drink up your blood like wine--Stewie.