On May 25, 1808, John and Charles Floyd purchased Little Cumberland Island from the heirs of General (Nathaniel) Nathanael Greene for $500. On August 24, 1837, John Floyd sold six acres on the north end of Little Cumberland to the United States Government for a lighthouse to be erected on St. Andrews Sound: "John Floyd... hath granted, bargained, sold unto the United States of America Six acres of Land on the Island of Little Cumberland and at the north part of the same and selected as a site for the contemplated Light House to Saint Andrews inlet as the Plat thereof".