Mercersburg Historic District (Boundary Increase)

Along South Main Street, where the road bends east at Linden Avenue, twelve properties form a boundary increase to the Mercersburg Historic District. The most prominent is Prospect, a two-and-one-half-story brick Colonial Revival mansion built in 1910 for Harry W. Byron, son of the founder of the Byron Tannery, which was the town's principal industry in the late 19th and early 20th centuries. Its slate gambrel roof, pedimented portico and marble and mahogany interiors set it apart in the area. Rosemont, a nearby Colonial Revival house from about 1910, stands on a triangular lot. Across the street, a row of log, brick and frame houses dating from the late 18th through early 20th centuries recalls the period when the site was a brick yard beside a foundry at the edge of town. The houses are regarded as consistent in age, materials and integrity with the existing district.