Song sounds really promising. Solidly in the tradition of lots of good old train songs.
Curious about your rhyme scheme
Verses 1 and 2--internal rhyme in line 3 of each
e.g Smoke and steam and a Georgia dream In the smoke and damp of the labor camps
but then the internal rhyme drops out. I think internal rhyme is great for this sort of song--is it possible you could carry it on through the rest of the song (3rd lines)?
Love to hear the melody.
The last words "party on" would probably not be in a traditional song. Depends on what your goal is--if traditional sound is not important, it's no problem.
My hat's off to anybody who can write a traditional-sounding song-----congratulations!