Well, the Maggie Jones "Box Car Blues" isn't the same song at all. Here's what I hear on the Leroy Carr recording (on Spotify):

I'm all lonely sad and blue
Really Mister Soto (???) I've seen enough of you
I just got the blues

Cold and broke, long way from home
Tired of wandering don't want to roam
Way back home in Tennessee

My sweet lovin' mama is waiting for me
I got no money and the tickets ain't free
That is why I got the box car blues

Clickety-clack, clickety-clack
I got a dozen stitches in my back
Bumping over bridges (switches?) on this railroad track
I got the boxcar blues and I'm going back
Clickety, clickety, click clack

[instrumental bridge]

Roll that train (??), now come on through
Really Mister Seven I was waitin' on you
I just got the blues

Lose that train (??), Little Joe
Guess I'm going and losing my dough
Come on bones be good to me

Roll out seven money's gonna be free
Goodbye money them's two sixes I see
That is why I've got the boxcar blues

Clickety-clack, clickety-clack
Roll them bones and roll them back
Paid in your money with the last in my sack
I got the box car blues but I'm coming back
Clickety, clickety, click clack

[Spoken]Grab them bones, boy!
Here, rattlin! (??)
C'mon, seven!
Boxcars!

I got the box car blues but I'm coming back
Clickety, clickety, click clack


There are several parts here that I just can't figure out - the worst parts are marked by question marks.