Odd Pics in an Old Mansion Museum

Who are these people? The photos grace the wall of a mansion museum in Trinidad. They can't all be the occupants of this opulent home. Why? Because you see white and black and Latino folks and no way they all lived in this house. Not sure why the curators of this house museum put these up. There was a lone woman keeping an eye on the place in the entrance and I was reluctant to ask her questions.