Aristocratis, the former Liberty ship William H. Jackson, grounded in "soupy fog' near Johnson Lee on Santa Rosa Island on 1 December 1949 while enroute to Keelung, Formosa, (Taiwan) with a cargo of coal. Another newspaper article describes the cargo as "ammonium sulphate in holds, tanks on deck." Immediate radio messages from the vessel indicated no danger to the crew of thirty "if the weather held." Three Coast Guard cutters, Perseus, Diligence, and 83-366 came to the grounded vessel in fog heavy enough to impede even these radar equipped vessels. The Red Stack tug Relief arrived on scene and pulled Aristocratis free the following day on a high tide.

The William H. Jackson was hull number 2156 when built in the Bethlehem-Fairfield Shipyard, Baltimore, launching in July, 1943, equipped with triple expansion engines from General Machinery Corporation. The vessel was known as Aristocratis until 1951 when it became the San Roque. Later registered as Aghios Spyridon and San Spyridon, the vessel was scrapped in Shanghai in December 1968.

Archeological survey might reveal coal from this vessel along the coast near Johnsons Lee, although there is no specific mention of any cargo dumping during the rescue of Aristocratis. Morris & Lima