Two homes were built on South Head for the Hornby lighthouse keepers. The first cottage is the Head Lighthouse Keeper's Cottage in the clearing, with the assistant's house being closer to the lighthouse. This arrangement is unusual - normally, the head keeper's house would be closer. The head lightkeeper's house was completed about three years after the other house, around 1860. The first head lighthouse keeper was the well-motivated James Johnston, who was aboard the Dubar (a sailing ship on route from England) that smashed against the rocks near The Gap in 1857. 121 souls were lost that evening and James Johnston was the only survivor.