Looking for Charles Hill of Georgia USA

Charles Hill married Ann ? in Georgia USA on 1st AUGUST 1804. They returned to England about 1818.Two children Henry and Emma were probably born in Georgia. Charles died in 1824 in Clerkenwell Middlesex, England. Ann lived until 1852 she was born in England. I am a descendent of Frederick William Hill born 1823 Clerkenwell Middlesex parents Charles and Ann. Any information or help finding their marriage and what they were doing in Georgia would be gratefully received. Marian Fisher