I recognized the chairs as soon as I saw them in Kelmscott Manor as I have one in my bedroom at home. I had no idea it was a Morris & Co. chair possibly designed by Ford Madox Brown. When I looked through my old school sketchbook trying to find something last week, I came across this drawing of the very same chair. It was drawn in my family's sitting room that was papered with WM Marigold wallpaper in olive green (not included in the drawing!).
Morris and Co