I note that there's now two photos of Washington Hall. The husband of my relative (sister of my ggg grandfather) built that building as well as a couple of others on campus (and the brick work on Monticello). His house still stands (Stono) and is right at the eastern edge of campus. He was a close friend of the commandant and attended the same church as the Jacksons (and built the parsonage which also still stands).
Sorry, just couldn't help myself.