Our tour guide was a black guy. I was worried that it would turn in to a screed but this guy was incredible. A serious historian not given to trendy histrionics.
I remember a woman doing our tour through the house and she was also very professional and as you described your guide, also a serious historian. Outside, as it was a gorgeous day, I did the garden tour with a lovely and knowledgeable woman. The one dealing with slavery was crammed with schoolkids, so it was good to do this other one with mainly adults, lol.