Matthew Sabatella and Rambling String Band have their lyrics for "Old Chisholm Trail" on line.

They have a few verses I have commonly heard, but may not be in those posted so far.

Stray in the herd and the boss said to kill it,
So I shot him in the rump with the handle of a skillet.

My hoss throwed me off at the creek called Mud,
My boss throwed me off round the 2 U herd.

Last time I saw him he was going 'cross the level,
A-kicking up his heels and a-runnin' like the devil.

The wind commenced to blow and the rain began to fall,
Hit looked, by grab, that we were goin' to lose them all.

I popped my foot in the stirrup and gave a little yell,
The tail cattle broke and the leaders went as well [went to hell]

Feet in the stirrups and seat in the saddle,
I hung and rattled with them longhorn cattle.

I don't give a damn if they never do stop,
I'll ride as long as an eight-day clock.

We rounded 'em up and put 'em on the cars,
QAnd that was the last of the old Two Bars.

Goin' to the boss to get my money,
Goin' back south to see my honey.

With my hand on the horn and my seat in the sky,
I'll quit herding cows in the sweet by and by.

http://www.balladofamerica.com/music/indexes/songs/oldchisholmtrail/