It seems that Phil Ochs likes using bIII, bVI and bVII chords a lot. Here's another example:
G C G
Creek was running by the road,
D
And the Buckeye sun was a-shinin'.
G C G
I rode my bike down Alum Creek Drive
Em Am
When I was a boy in Ohio.
G C G
The English teacher, he didn't care.
F
He challenged us to checkers.
Bb D7
And once in a while we'd swap a joke
Eb
When I was a boy in Ohio.