I have the Clarence Green recording, not Mike Seeger's. Most of the lyrics are easily understood but there are a few words I can't figure out, in the verse:

Down in Nicaragua, as far as I could go
Was the darendest bunch of soldiers that you ever saw
On the Tennessee River, down below the ------- --------
I was lookin for my good gal, thinkin she --------- --------

Thanks to anyone who can help.