Hmm. This made me remember that one of my favorite reference books, Steven Parissien's Regency Style mentions Homewood House numerous times. Homewood House is in Baltimore just a short (depending on traffic, of course) drive up I-95. Baltimore is also where two MacKenzie boys happen to reside at the moment. And when I actually looked at where Homewood House is in Baltimore...it turns out it's within spitting distance (not that any of us would be so uncouth as to spit) of son#3's apartment.
So Sunday we had a lovely brunch with two sons and one fiancée, took a quick peek at some fascinating miniatures as well as some late 18th/early 19th century items at the Baltimore Museum of Art with one son, and then headed off for a tour of Homewood House.
The only way to see Homewood House is with a guided tour, and we totally lucked out--it was just Mr. M and I and the guide. I could ask a million questions, and our wonderful guide didn't seem to mind. (I did warn her beforehand that I was a writer.) She was delighted I recognized the Argand lamps--and I was delighted to see a water-closet that looked just like the one pictured in The Soanes at Home by Susan Palmer that I'd bought at the Sir John Soane's Museum in London.