Well, it sounds like his man Lewis was a hireling, either free or bond. Either way, he was paying someone what Tax-Chick pointed out was a wage. That implies he didn't own the man.
I've never seen any data on what proportion of the Southern labor resource was hired labor (I mean, from an agency or an owner, or a free contractor), versus chattel slave, versus employed labor.
Granting that there wasn't much difference, back then, between employed and contract labor, as long as you were talking about free men.
You all win... I declare you the victor!
Enjoy the spoils! LOL!