The parlor in my 1806 house in Vermont is all wide pine, usually single
boards for each raised panel.
Based on photos, was probably painted originally, is now mostly unfinished
due to an earlier-than-I owner probably
stripping the paint off, at least in that room. Most of the other
fireplaces (eight in all) have a painted raised panel wall
on the fireplace side, and chair-rail height wainscotting around the rest
of the room, with plaster above, usually wallpapered.
There are a few houses in the area that still have stenciled or
hand-painted walls, like those of Rufus Porter, and usually above
painted wainscotting. See https://www.pwpcenter.org/ for more information
if you're interested.
On Thu, Jan 20, 2022 at 9:01 AM Dennis Heyza