Well, if we're gonna swap versions, this is what I remember of how Joe Haldeman sings it. I don't know his source, but's pretty clearly a folked-over version, since it's got two names for the colonel and THREE for the woman, three hands worth of weapons, and a farewell to a judge he didn't have.

KILGARY MOUNTAIN

As I was a walkin' over Kilgary mountain,
I met with Colonel Pepper and his money he was countin'.
I drew forth me pistols and I brandished my sabre,
Saying "Stand and deliver, for I am a bold deceiver,"

(Cho)
Musha ringum durum da,
Wack fol the derry o,
Wack fol the derry o,
There's whiskey in the jar.

Them shiny golden coins sure did look bright and pretty,
I took the money home, and I gave it to my Kitty.
She swore and she promised that she never would deceive me,
But the Devil's in the women; they can always lie so easy.

Now when I awoke, 'twas around six or seven,
Guards were all around me in numbers odd and even
I drew forth me pistols, but alas I was mistaken,
For Molly'd poured the powder out, and a prisoner I was taken.

They put me into jail, without a judge or writin',
For robbing Colonel Pepper up on Kilgary Mountain;
But they didn't take me fists, so I knocked the sentry down,
And I bid a last farewell to that judge in Sligo town.

I'm going to join me brother, the one who's in the army,
And I don't care where he's stationed, in Killare or Killarney.
And with him I'll go roaming to the mountains and the city,
And I'm sure he'll treat me better than my darling sporting Jenny.

Now some takes delight in the fishing or the bowling;
Others takes delight in the carriages a-rolling;
But I takes delight in the fruit of the barley
And courting pretty women in the morning O so early.