The range of textures among these cabin remains is extreme. These restored walls have been stuccoed with a material made from sand and oyster shell based lime. The National Park service (using volunteers, I think) has done some wonderful work with a few cabins whose walls now look as they likely did when new. The lintels are impressive, too, as I think they may have been hand hewn at least somewhat after being sawn. They look authentic anyway. Originally, the windows would have had wooden shutters to keep out as much nasty weather (and flying critters) as possible. Sooner or later I'll make an appointment with the person in charge of the plantation to get my facts checked, although I've read enough to believe I've been fairly accurate.