From Lynn Riggs "Cowboy Songs, Folk Songs and Ballads from Green Grow The Lilacs" 1932:

OLD PAINT

My feet are in the stirrups, my bridle's in my hand,
Good-bye, my little dony - my pony won't stand.

CHORUS
Good-bye, old Paint, I'm a-leavin' Cheyenne.
Good-bye, old Paint, I'm a-leavin' Cheyenne.
I'm a-leavin' Cheyenne, I'm off for Montan',
Good-bye, old Paint, I'm a-leavin' Cheyenne,
Good-bye, old Paint, I'm a-leavin' Cheyenne.

Old Paint's a good pony, he paces when he can.
Good-bye, my little Annie - my pony won't stand.

(CHORUS)

My horses ain't hungry - they won't eat your hay.
My wagon is loaded and a-rollin' on its way.

(CHORUS again, repeating its last line.)