These are the surviving elements of the Jones-Hall-Sims House, a two-story log cabin built by formerly enslaved members of the Jones family. The body of the house is composed of heavy timbers fit together with saddle notches. The side gable roof is lightly framed. There is one (1) entrance to the house, at the proper right of the house's front side. This same side of the house has three (3) window openings, one on the lower level at proper left, one at upper left and one at upper right. On the back side of the house are four (4) window openings. Three (3) original joists remain between the first and second levels of the house. Inside the house, at center back, painted wood planks form a partition wall. Behind the partition wall are stairs leading to the former second level. Below the stairs is a small closet space accessible through a white-painted door in the partition wall. A small section of original chinking has been installed in between timbers on the second story interior wall of the house. The lower timbers of the house, having been directly exposed to the soil for decades, required full or partial replacement. This home was located in Jonesville, near what is now Poolesville, Maryland.