Final answer:
The Georgian signer of the Declaration of Independence who moved from England, bought St. Catherine’s island, and was killed in a duel is Button Gwinnett.
Step-by-step explanation:
The signer of the Declaration of Independence from Georgia who was a businessman, moved to Georgia from England in 1765, bought St. Catherine’s island, and was later killed in a duel with Lachlan McIntosh is Button Gwinnett. Button Gwinnett was one of the three Georgians to sign the Declaration of Independence. His tenure was short-lived as he died shortly after the duel, and he remains a notable figure in Georgia’s early history. The duel with McIntosh was a result of a rivalry that developed during their political careers, reflecting the intense personal and political conflicts of the revolutionary period.