From the 290 Foundation.
In June, the CSS Spray captured a U.S. schooner somewhere east of the St. Marks River under the command of Lt. McGary, CSN.
The Spray was built at New Albany, Indiana, and purchased by Daniel Ladd of Newport, Florida, for $15,000 and used in Gulf of Mexico coastal waters before the war. There wasn't a problem moving goods in the area shortly after the war began, but that changed when the USS Mohawk arrived off the St. Marks River.
Shortly before it arrived, the sloop CSS George B. Sloat had been captured in the St. Marks River. The Mohawk's crew used two small boats to move the Sloat into the river channel and sank it as an obstruction.