This seems to be the Geoff Mulduar version: https://www.youtube.com/watch?v=HUV9XzvKAoY

Downtown Blues – Geoff Muldaur via Frank Stokes

Hey little mama: the world done gone away
Hey little mama: the world done gone away
I got a bad-luck deal: give me trouble every day

And I'm going I'm going: put a black crepe on your door
And I'm going I'm going: put a black crepe on your door
Cause your babe ain't dead: don’t go to your house no more

And I'm going downtown: going down past your door
And I'm going downtown: going down past your door
Hey, hey little mama: I’m about the carry on.

Well, look out baby, now mama when I get back
Well, look out baby, now mama when I get back
Don’t wanna find no monkey-man lining my tracks.

I got a gal in the country: got two that stays, two that stays in town
I got a gal in the country: got two that stays in town
Reason I seem so nice is one might put me down.

So I'm going downtown: I'm going downtown
I'm going downtown: I’m going down past your door
Hey, hey, hey little mama: I’m about the carry on.