Most sources referred to such people as "slave-owners" or "slave-masters."
Slaves were counted by population by three-fifths of a person.
Slaves were 3/5 of a person
Jefferson Davis
As 3/5ths of a person...
obama
A person in charge of a province is typically referred to as a governor.
The boss
Slave trader or slave broker
the owner of the park
TourGuide or ranger
conductor
Apparently any numbers beginning with 08 reverse charge the person being called. Therefore they would call a person, with an advertisement, and then charge that person for the phone call. That is why the recipient of the call should avoid, and not answer the call.
The ambassador is in charge of an embassy.
Funeral Director
The person in charge of a gallery is typically known as an "Exhibitioner," because a gallery is where art is "exhibited."
He would be the chieftain or chief.
Chief Information Officer