How about posting the lyrics? Far as I can tell, it's
a sort of off-beat talking blues.

They all seem to start out something like

June 12, 1863. Dear Momma and Papa
Well it's been nothing but beans and water for twelve days
The latrine done backed up into the tent
now it smells powerful bad.
Jimmy's leg fell off yesteday, it smelt powerful bad too--
worse'n that danged latrine.
They say we'll meet up with the Yankees soon
Tell Maggie to stay away from Jim Bob, tell Jim
Bob if he doesn't leave Maggie alone I'll thrash
him if I ever do get home...

Anyways, it's the kind of stuff that goes through my
head by the time someone get's through the first few
bars...