I've listened to several sound samples, and this brief excerpt is the best I can do:

Goin' to Detroit, Michigan. You got to stay here behind. [or "I got to leave you here behind."]
Gonna get me a job on the Cadillac assembly line.

I'm tired o' whoopin' an' hollerin' up and down that Mississippi road.
Tired o' whoopin' an' hollerin', pickin' this nasty cotton....