I've just checked my old song book and I used different chords when I used to sing it - about 100 years ago. (Well, almost 40 years.)

(A)Show me the (A-aug)prison, (A)Show me the (A-aug)jail.
(A)Show me the (F#min)prisoner whose (B)life has gone (E)stale
And (A)I'll show you (F#min)young man
With so (D)many reasons (Bmin)why
(C#min)There but for (F#min)fortune go (B)you or (E)I
There go (A)I.....(A-aug.....A......A-aug)

I also added a couple of verses but they're rather dated now.

Show me the city divided in two.
Show me the people with no freedom to go through...

Show me the black child, standing apart,
Show me the senselessness when prejudices start....

Yes, OK, that was a bit of a mouthful but it worked at the time!
Robyn