Unloading a horse, which is carried in a sling, from the deck of the SS Governor Musgrave into a waiting rowing boat for the use of the lighthouse keepers stationed on the Neptune Islands off Port Lincoln, South Australia.

A lighthouse was placed on South Neptune Island at the entrance to Spencer Gulf in November 1901. This was the light tower from the Port Adelaide Entrance light. This was replaced by a small brick tower in 1985 and the original tower was returned to Adelaide to become a major attraction for the South Australian Maritime Museum.

Governor Musgrave was acquired by the South Australian government in 1874 as a service vessel for the lighthouses along the coast. This would have involved transport of supplies for the keepers, and for the lights, and have included assistance with general maintenance as required. The horse may have been one of the more unusual items of cargo transported.

In addition to her lighthouse duties Governor Musgrave was used for vice regal tours of the Gulfs. In 1915 the ship was acquired by the Commonwealth Lighthouse Service for duty on the Western Australian coast.