Some missing lines:

And it's ride, ride, ride
til the sun don't shine

Eli Ross is a fine trail boss
And he's been on many a drive
I don't think I've seen a tougher man alive
He and his brother come from Tennessee
That was many years ago
Now the trail's the only ho-ome Eli knows.

The version I heard was by Bob Devlin, a street singer and recording musician