The frame Queen Anne–style house with ornate piazza was built for Johnston, a noted diver and salvager of wrecks, by his business partner, contractor William H. Virden. Inside is an elaborate, quartersawn red-oak stair. A mid-twentieth-century owner was Otis H. Smith, longtime mayor (1950–1968) and head of Fish Products Company, the town's largest and smelliest employer. Degenerated into a rundown rental property by the 1970s, it was restored and is currently occupied by a business, which has renamed it “Harvard House.”