Was it that long ago 

That I put my pack on my back 

Walkin to the highway some new seeds to sow 

Or gettin in that over the road truck , nothin but a sack 

With all my shit or what little shit I had 

Road dog, ridin from jump, bad 

Bout movin on wherever, the next campaign 

Or the next town wherever the road went 

Always felt I was sent 

Good thing bout bein a road dog 

Nothin to hold you back 

When you say you're comin, nothin to hold you back. 

Photo: Hitchhikers, Vicksburg vicinity, Mississippi, 1936 by Walker Evans.  Wikipedia.